TABLE OF CONTENTS. COBRA SX STERNDRIVE OMC COBRA STERNDRIVE OMC STRINGER STERNDRIVE OMC COBRA STERNDRIVE.

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3 TABLE OF CONTENTS COBRA SX STERNDRIVE Cobra SX Replacement Sterndrives (1994 & Up) Section 1 OMC COBRA STERNDRIVE OMC Cobra Transom Assembly Parts ( ) Section 5 Upper Gear Housing Breakdown (1994 & Up) Lower Gear Housing Breakdown (1994 & Up) Transom Assembly Breakdown (1994 & Up) UJoint Bellows Exhaust Bellows External Gimbal Bearing Thrust Plates Drive Shaft Assembly Upper UJoints Gear Housing Seal Kits Bearing Carrier Bearings & Oil Seals Shift Lever Oil Seal Drive Shaft Lower Prop Shaft Trim Tab OMC COBRA STERNDRIVE OMC Cobra Replacement Sterndrives ( ) Section 2 Sterndrive Unit Application Complete Upper Gear Housing Assembly Complete Lower Gear Housing Assembly OMC Cobra Upper Gear Housing Parts ( ) Section 3 Upper Gear Housing Complete ( ) Upper Gear Housing Empty ( ) Upper Gear Housing Assembly & Rebuild Kits ( ).. 24 Upper Gear Housing Seal Kits ( ) Upper Gear Housing Kits Applications ( ) Upper Gear Set Assembly ( ) Upper Gear Sets ( ) Upper Gear Housing Breakdown ( ) Gear Housing Components ( ) Gear Housing Drive Shaft ( ) OMC Cobra Lower Gear Housing Parts ( ) Section 4 Lower Gear Housing Complete ( ) Lower Gear Housing Empty ( ) Lower Gear Housing Assembly Kit Lower Gear Housing Rebuild Kit Lower Gear Housing Seal Kits ( ) Lower Gear Housing Breakdown ( ) Lower Gear Housing Gear Sets Prop Shaft Parts 4Cyl. 2.3L ( ), 3.0L ( ).. 46 Prop Shaft Parts 4Cyl. 3.0L (1990), V6 & V8 ( ) Prop Shaft Parts ALL ( ) Lower Gear Housing Components Lower Gear Housing Shift Shaft ( ) Lower Gear Housing Drive Shaft ( ) Transom Assembly Breakdown ( ) Shift Cable ( ) Transom Bellows Transom Service Kit ( ) Drive Installation Kit ( ) Gimbal Bearing OMC STRINGER STERNDRIVE OMC Stringer Upper Gear Housing Parts (1985 & Older) Section 6 Upper Gear Housing Applications Upper Gear Housing Complete Upper Gear Housing Empty Bearing Retainer Assemblies Upper Gear Housing Rebuild Kits Upper Gear Housing Seal Kits Upper Gear Sets Upper Gear Housing Breakdown ( ) Upper Gear Housing Components Drive Shafts Steering Components OMC Stringer Lower Gear Housing Parts (1985 & Older) Section 7 Upper & Lower Gear Housing Applications Lower Gear Housing Complete Lower Gear Housing Empty Lower Gear Housing Assembly Kit Lower Gear Housing Seal Kits Lower Gear Housing Breakdown ( ) Lower Gear Sets Lower Gear Housing Components ( ) Prop Shaft Parts 4Cyl. w/ Mechanical Shift ( ) Prop Shaft Parts V6 & V8 w/ Mechanical Shift ( ) Lower Gear Housing 4Cyl. w/ Mechanical Shift ( ) Lower Gear Housing V6 & V8 w/ Mechanical Shift ( ) Shift Parts Miscellaneous Electric Shift Lower OMC Stringer Intermediate Housing Parts (1985 & Older) Section 8 Intermediate Housing Breakdown Intermediate Housing Seal Kit Tilt Housing Seal Kit Tilt Shaft Ball Gears, Bearings, Seals Drive Installation Kits Transom Boot/Seal

4 TABLE OF CONTENTS OMC COBRA & STRINGER OMC Cobra SX, Cobra & Stringer Prop Hardware, Anodes, Tools Section 9 Prop Hardware (Cobra SX, Cobra & Stringer) Anodes Prop Wrench Kits & Prop Wrenches Marine Service Tools OMC & VOLVO COOLING OMC & Volvo Penta Cooling System Section 10 Sea Water Pumps Cobra SX (1994 & Up) Sea Water Pumps Cobra ( ) Sea Water Pumps Stringer (1985 & Below) Sea Water Pumps AQ Sea Water Pump Drives Recirculating Water Pumps Recirculating Water Pump Gaskets Thermostats & Thermostat Kits Thermostat Gaskets & Housings OMC & VOLVO ENGINE OMC & Volvo Penta Internal Exhaust Hose, Exhaust Gaskets Section 11 Exhaust Manifold Gasket Kits Exhaust ManifoldtoEngine Gaskets Exhaust ManifoldtoRiser Gaskets Exhaust Manifold End Cap Gaskets Internal Exhaust Hose Exhaust Flappers for Exhaust Tips OMC & Volvo Penta Fuel Pumps, Filters & Carburetor Parts Section 12 Water/Fuel Separator Brackets Water/Fuel Separator Filters Water/Fuel Separator Kits Fuel Filters Carburetor Kits Carburetor Floats Carburetor Needle & Seats Carburetor Mounting Gaskets Fuel Pumps Fuel Pump Gaskets OMC & Volvo Penta Ignition Section 13 Mallory Ignition Prestolite Ignition Volvo/Bosch Ignition Delco Points Ignition Delco EST Ignition Ford EFI Ignition Delco EST Module Delco EST Pickup Coil Ignition Coils Ignition Components Application OMC & VOLVO ENGINE OMC & Volvo Penta Electrical Solenoids, Power Trim Relays Section 14 Electrical Solenoids, Power Trim Relays, Voltage Reg OMC & Volvo Penta Engine Gaskets, Rear Main Oil Seals Section 15 Head Gaskets Intake Manifold Gaskets Valve Cover Gaskets Lifter Side Cover Gaskets Oil Pan Gaskets Timing Chain Cover Gasket Kits Timing Chain Cover Gaskets Crank Shaft Oil Seals Distributor Gaskets Engine Gasket Kits VOLVO STERNDRIVE Volvo Penta AQ (Up to 1993) Sterndrives & Transom Assemblies Section 16 Upper Gear Housing Breakdown Lower Gear Housing Breakdown Intermediate Housing Breakdown Transom Assembly Breakdowns Gear Housing Seal Kits Intermediate Housing Parts Tilt Bushings UJoints & Bellows Exhaust Bellows External Drive Cover Transom Assembly Parts Volvo Penta Aluminum Anodes, Prop Hardware, Size Charts & Quick Reference Section 17 Aluminum Anode Kits Aluminum Anodes Prop Service Kits & Thrust Rings Volvo Penta AQ Oil Seal Shaft & Bore Size Chart Oil Seal Applications Oring Size Chart Quick Reference Engine Side Quick Reference Drive Side WARRANTY Notes GLM Limited Warranty GLM Warranty Procedure GLM Warranty Application

5 Section 1 Cobra SX Drive Sterndrives & Transom Assemblies 1994 & Up Upper Gear Housing Breakdown (1994 & Up) Lower Gear Housing Breakdown (1994 & Up) Transom Assembly Breakdown (1994 & Up) UJoint Bellows...12 Exhaust Bellows External...12 Gimbal Bearing...12 Thrust Plates...12 Drive Shaft Assembly Upper...13 UJoints Gear Housing Seal Kits Bearing Carrier Bearings & Oil Seals Shift Lever Oil Seal Drive Shaft Lower Prop Shaft Trim Tab Cobra SX Sterndrive Section 1 5

6 Cobra SX UPPER GEAR HOUSING COMPONENTS (1994 & Up) Seal Kit No

7 Cobra SX UPPER GEAR HOUSING COMPONENTS (1994 & Up) GLM No. Ref No. OEM No. Description Oring Gasket UJoint Assy Yoke Long UJoint Socket Yoke Oring Oil Seal Bearing Oring Bearing Oring Oil Seal Gasket Seal Gasket Thrust Plate Thrust Plate Shim Retaining Ring Screw Screw Shim Shim Shim Shim Bushing Screw Locknut Locknut, Flanged Seal Kit 7

8 Cobra SX LOWER GEAR HOUSING COMPONENTS (1994 & Up) Seal Kit No For Prop Hardware Kits See Section 11 8

9 Cobra SX LOWER GEAR HOUSING COMPONENTS (1994 & Up) GLM No. Ref No. OEM No. Description Grommet Seal Oring Bearing Bearing Bearing Washer Screw Bearing Prop Shaft Bearing Oring Oil Seal Thrust Washer Spacer Cotter Pin Nut & Keeper Trim Tab Drive Shaft Oring Anode Anode Seal Kit 9

10 Cobra SX TRANSOM ASSEMBLY (1994 & Up) Transom Service Kit No Trailer Clips No Outdrive Mounting Kit No

11 Cobra SX TRANSOM ASSEMBLY (1994 & Up) GLM No. Ref No. OEM No. Description Oring Oring Gimbal Bearing Screw Oring UJoint Bellow Clamp Seal Oring Oring Exhaust Bellow Clamp Oil Seal Anode Locknut Transom Mount Seal Washer Transom Service Kit Outdrive Mounting Kit Oring Trailer Clips 11

12 No Cobra SX Kit contents: GLM OEM ITEM UJoint Bellow Exhaust Bellow Hose Clamp Hose Clamp Gimbal Bearing Seal Cobra SX (1994 & Up) No GIMBAL BEARING OEM: No UJOINT BELLOW OEM: No OUTDRIVE MOUNTING KIT No EXHAUST BELLOW OEM: For All Clone Clutch Cobra SX (1994 & Up) Cobra SX (1994 & Up) Cobra SX (1994 & Up) Cobra SX (1994 & Up) No THRUST PLATE PORT OEM: No SHIM OEM: No TRANSOM MOUNT SEAL OEM: No TRAILER CLIPS OEM: NEW No THRUST PLATE STBD OEM: No RETAINER RING OEM: Cobra SX (1994 & Up) Cobra SX (1994 & Up) Cobra SX (1994 & Up) Cobra SX (1994 & Up) 12

13 Cobra SX No UJOINT ASSY OEM: , % Hot Forged Cobra SX (1994 & Up) Includes: No SCREW OEM: No YOKE OEM: No UJOINT (Heavy Duty) OEM: No SOCKET OEM: No YOKE OEM: No ORING DRIVE SHAFT YOKE OEM: No GEAR HOUSING SEAL KIT OEM: No UJOINT (External Lockring Style) OEM: Cobra SX (1994 & Up) NEW No GEAR HOUSING SEAL KIT OEM: Includes: No SCREW OEM: Cobra SX (1994 & Up) Cobra SX (1994 & Up) 13

14 No OIL SEAL BEARING CARRIER OEM: Cobra SX No BEARING BEARING CARRIER OEM: No ORING BEARING CARRIER OEM: No BEARING BEARING CARRIER OEM: No ORING DIP STICK OEM: No GASKET TOP COVER OEM: No GASKET DRAIN PLUG OEM: No ORING SHIFT LEVER HOUSING OEM: No OIL SEAL SHIFT LEVER OEM: No GASKET WATER PASSAGE OEM:

15 Cobra SX LOWER GEAR HOUSING DRIVE SHAFT (VERTICAL) No ORING OEM: No TAPERED ROLLER BEARINGUPPER OEM: No DRIVE SHAFT OEM: No TAPERED ROLLER BEARINGLOWER OEM: No PINION BEARING OEM: Cobra SX (1994 & Up) LOWER GEARCASE PROP SHAFT No OIL SEAL PROP SHAFT OEM: No TAPERED ROLLER BEARING REAR OEM: No PROP SHAFT OEM: No TAPERED ROLLER BEARING FRONT OEM: No ORING OEM: Cobra SX (1994 & Up) 15

16 Cobra SX LOWER GEAR HOUSING No GROMMET WATER TUBE UPPER OEM: No SEAL WATER TUBE LOWER OEM: No ORING GEAR OIL PASSAGE OEM: No TRIM TAB OEM: No SCREEN (2) OEM: No SCREW SET OEM: No SCREW (2) OEM: No GASKET OEM:

17 Section 2 OMC Cobra Replacement Sterndrives Sterndrive Unit Application...18 Complete Upper Gear Housing Assembly...19 Complete Lower Gear Housing Assembly...19 OMCCobra Sterndrive Section 2 17

18 Cobra STERNDRIVE UNIT APPLICATION ( ) Year Model Ratio Upper Housing Upper Complete Lower Housing Lower Complete L 21: N/A N/A N/A L 21: N/A N/A L 21: N/A N/A L 21: N/A N/A L High Alt 21: N/A N/A L All 21: N/A L All 21: L 21: L High Alt 21: N/A L 21: L High Alt 21: L 21: L High Alt 21: L 21: L High Alt 21: L 21: L High Alt 21: King 21: King High Alt 21: L 21: L High Alt 21: L 21: L High Alt 21: L 21: L High Alt 21: L EFI 21: L 460 King 21: N/A N/A King High Alt 21: N/A N/A 18

19 Cobra COMPLETE UPPER GEAR HOUSING ASSEMBLY ( ) No OEM: Ratio: 21:16 No OEM: Ratio: 21:18 No OEM: Ratio: 21:17 No OEM: Ratio: 21:19 100% New with Water Pump For more info, see Section 3 COMPLETE LOWER GEAR HOUSING ASSEMBLY No OEM: V6 & V Cylinder 3.0L 100% New with Heavy Duty Gears For more info, see Section

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21 Section 3 OMC Cobra Upper Gear Housing Parts Upper Gear Housing Complete ( )...22 Upper Gear Housing Empty ( )...23 Upper Gear Housing Assembly & Rebuild Kits ( ) Upper Gear Housing Seal Kits ( )...25 Upper Gear Housing Kits Applications ( ) Upper Gear Set Assembly ( )...26 Upper Gear Sets ( )...27 Upper Gear Housing Breakdown ( ) Gear Housing Components ( ) Gear Housing Drive Shaft ( )...33 OMCCobra Sterndrive Section 3 21

22 Cobra UPPER GEAR HOUSING COMPLETE ( ) 100% New with water pump Engine Teeth on Original Gears GLM No. OEM No. 4Cylinder, 2.3L ( ) 21T/21T Cylinder, 2.5L (1986) 21T/18T Cylinder, 3.0L ( ) 21T/18T Cylinder, 3.0L ( ) 21T/21T V6, 4.3L, 262 CID 21T/19T V8 Ford, 5.0L, 302 CID 21T/18T V8 Chevy, 5.0L, 305 CID 21T/17T V8 Ford EFI, 5.8L, 351 CID 21T/17T V8 Chevy, 5.7L, 350 CID 21T/16T V8 Ford, 5.8L, 351 CID 21T/16T V8 Ford, 7.5L, 460 CID ( ) 21T/17T

23 Cobra UPPER GEAR HOUSING No OEM: OMC Cobra Empty Gear Housing Ready for Your Components Don t scrap a boat because of a corroded upper gear housing! Replace it with a NEW housing from GLM. Sand Cast from superior A356T5 Aluminum Alloy (Original is Die Cast from inferior A380T6) The GLM #29900 will fit on all OMC Cobra sterndrives. It will accept the original internal and external OMC components. 23

24 Cobra COMPLETE UPPER GEAR HOUSING ASSEMBLY KIT No Ratio: 21:16 No Ratio: 21:18 No Ratio: 21:17 No Ratio: 21:19 UPPER GEAR HOUSING REBUILD KIT ( ) No Ratio: 21:16 No Ratio: 21:18 No Ratio: 21:17 No Ratio: 21:19 24

25 Cobra UPPER GEAR HOUSING SEAL KIT No OEM: UPPER GEAR HOUSING KITS APPLICATION CHART ( ) Engine For All Cobra Models ( ) Teeth on Original Gears Upper Assembly Kit Upper Rebuild Kit Upper Seal Kit 4Cylinder, 2.3L ( ) 21T/21T Cylinder, 2.5L (1986) 21T/18T Cylinder, 3.0L ( ) 21T/18T Cylinder, 3.0L ( ) 21T/21T V6, 4.3L, 262 CID 21T/19T V8 Ford, 5.0L, 302 CID 21T/18T V8 Chevy, 5.0L, 305 CID 21T/17T V8 Ford EFI, 5.8L, 351 CID 21T/17T V8 Chevy, 5.7L, 350 CID 21T/16T V8 Ford, 5.8L, 351 CID 21T/16T V8 Ford, 7.5L, 460 CID ( ) 21T/17T

26 Cobra UPPER GEAR SET ASSEMBLY ( ) No OEM: Ratio 21:16 5.7L 350 Chevy V8 5.8L 351 Ford V8 No OEM: Ratio 21:17 5.0L 305 Chevy V8 5.8L 351 Ford V8 EFI 7.5L 460 Ford V8 No OEM: Ratio 21:18 4Cylinder L 4Cylinder L 5.0L 302 Ford V8 No OEM: Ratio 21:19 4.3L 262 Chevy V6 26

27 No OEM: Ratio 21:16 Cobra UPPER GEAR SETS ( ) 5.7L 350 Chevy V8 5.8L 351 Ford V8 Comes With: GLM OEM Item Bearing Bearing Bearing Bearing No OEM: Ratio 21:18 4Cylinder L 4Cylinder L 5.0L 302 Ford V8 Comes With: GLM OEM Item Bearing Bearing Bearing Bearing No OEM: Ratio 21:19 4.3L 262 Chevy V6 Comes With: GLM OEM Item Bearing Bearing Bearing Bearing No OEM: Ratio 21:17 5.0L 305 Chevy V8 5.8L 351 Ford V8 EFI 7.5L 460 Ford V8 Comes With: GLM OEM Item Bearing Bearing Bearing Bearing 27

28 Cobra UPPER GEAR HOUSING COMPONENTS ( ) Seal Kit No

29 Cobra UPPER GEAR HOUSING COMPONENTS ( ) GLM No. Ref No. OEM No. Description GLM No. Ref No. OEM No. Description Upper Gearcase Assembly Screw Gear Set (21:16 Ratio) Vent Hose Gear Set (21:18 Ratio) Screw Gear Set (21:19 Ratio) Screw Gear Set (21:17 Ratio) Screw Bearing Dipstick Bearing Shim Pinion Nut Shim UJoint & Water Pump Shaft Shim Oring Shim Yoke Drive Shaft Shim Universal Joint Shim Socket Shim Yoke & Water Pump Shaft Shim Oil Seal Shim Oring Seal Bearing Locknut (use with 28420) Centering Cone Washer (use with 21170) UJoint Nut Locknut Flanged (no washer needed) Bearing Seal Kit Gasket Oring Oring Oil Seal Gasket Wear Plate Impeller Water Pump Liner Seal Gasket Gasket Oring Pump Housing Washer Retainer Cover Nut Bearing Carrier Water Pump Adapter Bearing Carrier Oring Cover Assembly Cover Assembly Thrust Plate Thrust Plate Shim Cover Assembly Retainer Ring Shim Shim Shim Shim

30 Cobra UPPER GEAR HOUSING COMPONENTS ( ) No NUT LOWER BEARING CARRIER OEM: No UPPER BEARING OEM: No LOWER BEARING CARRIER OEM: SHIM LOWER BEARING CARRIER No SHIM OEM: No SHIM No SHIM No LOWER BEARING OEM: No WASHER DRIVEN GEAR OEM: No RETAINER DRIVEN GEAR PINION NUT OEM: No PINION NUT DRIVEN GEAR OEM:

31 No SHIM OEM: No SHIM OEM: No SHIM OEM: Cobra UPPER GEAR HOUSING COMPONENTS ( ) No SHIM OEM: No SHIM OEM: No SHIM OEM: No BEARING OEM: Rear Shim Roller Bearing No BEARING OEM: No ORING CARRIER OEM: No FRONT BEARING CARRIER OEM: No SCREWCARRIER OEM: No OIL SEAL CARRIER OEM: No UJOINT NUT DRIVE GEAR OEM: No CENTERING CONE DRIVE GEAR OEM: SHIMS BEARING CARRIER No SHIM OEM: No SHIM OEM: No SHIM OEM: No SHIM OEM: SHIM KIT BEARING CARRIER No Kit Includes: No No No No No WATER PUMP ADAPTER OEM: No OIL SEAL OEM: No ORING OEM: No ORING OEM: No GASKET OEM:

32 Cobra UPPER GEAR HOUSING COMPONENTS No COVER ASSEMBLY OEM: No SCREW COVER OEM: No TOP COVER ASSEMBLY OEM: No SCREW TOP COVER OEM: ( ) ( ) No ORING TOP COVER OEM: No GASKET OEM: No DIPSTICK TOP COVER OEM: No WATER POCKET COVER ASSEMBLY OEM: No SCREW COVER ASSEMBLY OEM: No ORING DIPSTICK OEM: No THRUST PLATE PORT OEM: No THRUST PLATE STBD OEM: No SHIM OEM: No RETAINER RING OEM:

33 No UJOINT & WATER PUMP SHAFT OEM: Cobra UPPER GEAR HOUSING DRIVE SHAFT 100% Hot Forged ( ) No YOKE OEM: No UJOINT (HEAVY DUTY) OEM: No SOCKET OEM: No YOKE & WATER PUMP SHAFT OEM: ( ) No ORING FOR DRIVE SHAFT YOKE OEM:

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35 Section 4 OMC Cobra Lower Gear Housing Parts Lower Gear Housing Complete ( )...36 Lower Gear Housing Empty ( )...37 Lower Gear Housing Assembly Kit Lower Gear Housing Rebuild Kit Lower Gear Housing Seal Kits ( )...39 Loweer Gear Housing Breakdown ( ) Lower Gear Housing Gear Sets Prop Shaft Parts 4Cyl. 2.3L ( ), 3.0L ( ) Prop Shaft Parts 4Cyl. 3.0L (1990), V6 & V8 ( ) Prop Shaft Parts ALL ( ) Lower Gear Housing Components Lower Gear Housing Shift Shaft ( )...50 Lower Gear Housing Drive Shaft ( )...51 OMCCobra Sterndrive Section 4 35

36 Cobra COMPLETE LOWER GEAR HOUSING ASSEMBLY ( ) Strongest Lower Gear Housing Assemblies in the Marine Industry for OMC Cobra Sterndrives No OEM: Large Gear Housing Ratio: 12:22 No OEM: Small Gear Housing Ratio: 13:26 All GLM #28820 replacement lower gear housings for the OMC Cobra sterndrives have the new heavy duty #22666 gear sets. These durable gears are capable of operating with up to 300 horsepower. They also have the large 11/4 inch diameter prop shafts with a reverse thrust washer installed between the shaft and reverse gear. All GLM #28910 replacement lower gear housing is an economical replacement for 4Cylinder Cobra sterndrives. It is an exact replacement for your old gear housing. Upgrades include the new style bearing carrier and Mercruiser pressin style pinion bearing. Model Year Lower Complete 2.3L 4Cyl. Ford L 4Cyl. Chevy L 4Cyl. Chevy L V L Chevy/Ford L Chevy L Chevy

37 Cobra EMPTY LOWER GEAR HOUSING ( ) Ready for Your Components! Don t scrap a boat because of a damaged or corroded lower gear housing! Replace it with a NEW housing from GLM! No OEM: Large Gear Housing No OEM: Small Gear Housing Side View Rear View Side View Rear View Top View Top View List of Improvements made to the GLM housing: Sand Cast from superior A356T5 Aluminum Alloy. Mercuiser style pressed fit pinion needle bearing. Prop Shaft Carrier is retained with bolts and tabs ( style). Prop Shaft Carrier is prevented from rotating with a key and groove. Water pickup screens are removable w/out disassembling the drive ( style). Model Year Gear Housing 2.3L 4Cyl. Ford Small Housing 3.0L 4Cyl. Chevy Small Housing 3.0L 4Cyl. Chevy Large Housing 4.3L V Large Housing 5.0 L Chevy/Ford Large Housing 5.7L Chevy Large Housing 5.8L Chevy Large Housing Prop Shaft Carrier (1990) ( ) ( ) ( ) ( ) 37

38 Cobra COMPLETE GEAR HOUSING ASSEMBLY KIT No Ratio All Prop Shaft 11/4 in. Dia V6 & V Cyl. 3.0L No Ratio All Prop Shaft 11/4 in. Dia V6 & V Cyl. 3.0L COMPLETE GEAR HOUSING REBUILD KIT 38

39 Cobra LOWER GEAR HOUSING SEAL KIT 2.3L ( ), 3.0L ( ) No OEM: L L LOWER GEAR HOUSING SEAL KIT 3.0L ( ), V6 & V8 ( ) No OEM: L V6 & V (Except King Cobra) 39

40 Cobra LOWER GEAR HOUSING COMPONENTS ( ) 4Cyl.Seal Kit No V6, V8 & 4Cyl. (1990 & Up) Seal Kit No For Prop Hardware Kits See Section 11 40

41 Cobra LOWER GEAR HOUSING COMPONENTS ( ) GLM No. Ref No. OEM No. Description GLM No. Ref No. OEM No. Description Gearcase Assembly Pinion Bearing Screen Screw Washer Detent Cover & Seal Assembly Wiper Oring Screw Gasket Seal Tube Guide Water Passage Housing Upper Drive Shaft Nut Washer Gasket Detent Ball Spring Cradle Shaft Lever Thrust Washer Thrust Bearing Clutch Dog Cross Pin Spring Prop Shaft 13/16 (198690) Prop Shaft (All 4CYL ) Prop Shaft 11/4 (199193) Thrust Washer Thrust Bearing Thrust Washer Oring Oring 4CYL. Bearing Carrier (198690) Oring Screw Bearing Carrier (199193) Bearing Bearing Housing Oring Bearing (198690) Bearing (199193) Shim Oil Seal (198690) 2pieces Shim.004 Shim Oil Seal (199193) 2pieces Anode Thrust Washer Thrust Bearing Screw Tab Plug Screw Lower Drive Shaft Nut Thrust Washer Spacer P/Forward Gear Set Reverse Gear (198693) Shift Rod Nut Anode Screw Rod End Screw Washer Shift Rod Assembly Screw Screw Stud Stud Anode Screw Trim Tab Washer Screw Screw & Seal Lockwasher Draining Screw Seal Oring Gasket Screw Seal Kit 4Cyl. Seal Kit V6/V8 & 4Cyl. (1990 & Up) Nut & Keeper Cotter Pin Housing & Bearing Assembly Bearing Pin Pin 41

42 Cobra LOWER GEAR HOUSING GEARS HEAVY DUTY Gear Set GLM #22666 Includes #21651 thrust washer** NEW! When all three gears need replacing in your OMC Cobra Sterndrive the installation of the GLM #22666 heavyduty gear set is highly recommended. The heavyduty gears can be used with all fourcylinder sterndrives* from and all V6 and V8 OMC Cobra sterndrives from It is recommended that a new clutch GLM #22625 (this clutch is not included with the gear set) be installed with the heavyduty gears. The gears can be used with the standard 13/16" diameter prop shaft ( ) or the heavyduty 11/4 diameter prop shaft ( ). GLM #22666 heavyduty gears fit these OMC Cobra Sterndrive units: 3.0L/181CI 4Cyl. Chev L/262CI V6 Chev L/302CI V8 Ford L/305CI V8 Chev L/350CI V8 Chev L/351CI V8 Ford IMPORTANT NOTE: The new heavyduty GLM #22666 gears will not interchange with the standard Cobra gears. For individual Cobra gear replacement, you must use the standard duty GLM #22623 pinion and forward gears or the GLM #22624 reverse gear. STRONGER OEM gear sets are machined from 8620 forged steel. The GLM gear set is machined from a higher alloy forged steel. The stronger teeth and higher alloy steel results in a gear that is 50% stronger than any other comparable gear set. These durable gears are capable of operating with up to 300 horsepower. MORE DURABLE The new GLM gear set has fewer, larger, and stronger teeth. The pinion gear has 12 teeth and the forward and reverse gears have 22 teeth. The original OEM gear set has 14 teeth on the pinion and 26 teeth on the forward and reverse gears. QUIETER During the gear machining process, an additional pass is made over each tooth for a finer surface. This makes the gear operation especially quiet. *Except L **For model year 1991 OMC increased the prop shaft diameter at the carrier needle bearing (not the prop splines) from 13/16 to 11/4 inches. Some older gearcases may be fitted with the new large diameter prop shaft. The large diameter prop shaft utilizes a thrust washer (included with this gear set) between the prop shaft and reverse gear. Discard the thrust washer when using the small diameter prop shaft. 42

43 Cobra LOWER GEAR HOUSING GEARS STANDARD DUTY Replacement Gear Sets These gearsets are an exact copy of the gears used in the V6 and V8 OMC Cobra Sterndrives. They also replace the gears used in the fourcylinder* OMC Cobra sterndrives. The standardduty replacement gears are stronger than the original and can be used with the standard 1 3/16" diameter prop shaft ( ) or the heavyduty 1 1/4 diameter prop shaft ( ). #22623 Forward & Pinion Set #22624 Reverse Gear #21651 Thrust Washer #22625 Clutch Dog COMPLETE GEAR SET Forward/Pinion/Reverse 14/26 teeth Comes with the GLM #22625 clutch GLM #22622 OEM # FORWARD & PINION SET May be used with OMC reverse gear 14/26 teeth GLM #22623 OEM # REVERSE GEAR May be used with OMC forward and pinion gears 26 teeth Includes thrust washer #21651** GLM #22624 OEM # CLUTCH GLM #22625 OEM # *Except L **For model year 1991 OMC increased the prop shaft diameter at the carrier needle bearing (not the prop splines) from 1 3/16 to 11/4 inches. Some older gearcases may be fitted with the new large diameter prop shaft. The large diameter prop shaft utilizes a thrust washer (included with this gear set) between the prop shaft and reverse gear. Discard the thrust washer when using the small diameter prop shaft. It is recommended that the above standard duty replacement gears be used only with the fourcylinder and V6 powered sterndrives listed below: 3.0L/181CI 4Cyl. Chev L/262CI V6 Chev GLM recommends the heavyduty gearset #22666 for all V8 powered sterndrives. 43

44 Cobra LOWER GEAR HOUSING GEARS 4CYLINDER GEARS These gearsets are an exact copy of the gears used in the 4Cylinder 3.0L from and L. #22631 Forward & Pinion Set #22632 Reverse Gear #22633 Clutch Dog COMPLETE GEAR SET Forward/Pinion/Reverse 13/26 teeth Comes with the GLM #22633 clutch GLM #22630 OEM # FORWARD & PINION SET May be used with OMC reverse gear 13/26 teeth GLM #22631 OEM # REVERSE GEAR May be used with OMC forward and pinion gears 26 teeth GLM #22632 OEM # CLUTCH GLM #22633 OEM #

45 Cobra GEAR SETS & CLUTCH DOGS No COMPLETE GEAR SET Heavy Duty Gears No CLUTCH OEM: Clutch for Heavy Duty Gears No ( ) COMPLETE GEAR SET & CLUTCH OEM: For Large Gearcase 3.0L ( ), V6 & V8 ( ) No PINION & FORWARD GEAR SET OEM: :26 Ratio No REVERSE GEAR OEM: No CLUTCH OEM: No ( ) COMPLETE GEAR SET & CLUTCH OEM: For Small Gearcase 2.3L ( ), 3.0L ( ) No PINION & FORWARD GEAR SET OEM: :26 Ratio No REVERSE GEAR OEM: No CLUTCH OEM:

46 Cobra PROP SHAFT PARTS 4CYL 2.3L ( ), 4CYL 3.0L ( ) No PROP SHAFT SEAL (2) OEM: No PROP SHAFT BEARING OEM: No REVERSE GEAR BEARING OEM: No THRUST WASHER REVERSE GEAR OEM: No THRUST BEARING REVERSE GEAR OEM: No ORING BEARING CARRIER OEM: No PROP SHAFT OEM: PROP SHAFT PARTS 4CYL 3.0L (1990), V6 & V8 ( ) No PROP SHAFT SEAL (2) OEM: No PROP SHAFT BEARING OEM: No REVERSE GEAR BEARING OEM: No THRUST WASHER REVERSE GEAR OEM: No THRUST BEARING REVERSE GEAR OEM: No ORING BEARING CARRIER OEM: No PROP SHAFT 13/16 ( ) OEM: FOR 13/16 DIA. PROP SHAFT No

47 Cobra PROP SHAFT PARTS ALL ( ) No PROP SHAFT SEAL (2) OEM: No PROP SHAFT BEARING OEM: No BEARING CARRIER OEM: Comes with: 86810, 22950, No SCREW OEM: No TAB OEM: No THRUST BEARING REVERSE GEAR OEM: No ORING BEARING CARRIER OEM: No REVERSE GEAR BEARING OEM: No THRUST WASHER REVERSE GEAR OEM: No THRUST WASHER OEM: No PROP SHAFT 11/4 (199193) OEM: FOR 11/4 DIA. PROP SHAFT No For the 1991 model year the OMC Cobra lower gear housing was redesigned with a stronger propellor shaft and bearing carrier. Propellor Shaft Changes A shoulder machined into the propellor shaft contacts the reverse gear and prevents the shaft from being pulled out of the gear housing when shifted into reverse. The propellor shaft utilizes a hardened steel thrust washer between the shoulder and the reverse gear. This hardened thrust washer keeps the shoulder on the prop shaft from damaging the inside of the gear when the boat is shifted into reverse. The shoulder on the propellor shaft is machined deeper to accomodate the hardened thrust washer. Another improvement on the propellor shaft is an increase in diameter from 13/16 inches to 11/4 inches. The diameter was increased at the needle bearing, the prop shaft seal and the propellor thrust washer locations. The propellor splines remained the same. Bearing Carrier The bearing carrier was redesigned with two holddown tabs and two 5/16 inch bolts holding the carrier to the gear housing. The older carrier installs with four 1/4 inch bolts, a retainer plate and two internal retainer rings. The new carrier GLM #11408 also comes with a larger needle bearing and prop shaft seals for the larger diameter prop shaft. It can only be installed into 1991 and newer lower gear housings that have the notches for the hold down tabs. 47

48 Cobra LOWER GEAR HOUSING 4CYL. 2.3L ( ), 4CYL. 3.0L ( ) No SPRING OEM: No CROSS PIN OEM: No CLUTCH DOG OEM: No FORWARD GEAR THRUST BEARING OEM: No FORWARD GEAR THRUST WASHER OEM: No PIN OEM: No LEVER OEM: No DETENT OEM: No SHAFT OEM: No CRADLE OEM: No FORWARD GEAR BEARING OEM: No HOUSING & BEARING ASSY OEM: Includes No DETENT BALL OEM: No SPRING OEM: No SHAFT & BEARING HSG KIT 48

49 No SPRING OEM: Cobra LOWER GEAR HOUSING 3.0L ( ), V6 & V8 ( ) No CROSS PIN OEM: No CLUTCH DOG OEM: No FORWARD GEAR THRUST BEARING OEM: No FORWARD GEAR THRUST WASHER OEM: No PIN OEM: No LEVER OEM: No DETENT OEM: No SHAFT OEM: No CRADLE OEM: No FORWARD GEAR BEARING OEM: No HOUSING & BEARING ASSY OEM: Includes No DETENT BALL OEM: No SPRING OEM: No SHAFT & BEARING HSG KIT No TRIM TAB OEM: No SCREW OEM: V6 & V8 (198693) 3.0L (199093) 49

50 No SHIFT ROD OEM: Cobra LOWER GEAR HOUSING SHIFT SHAFT ( ) No ROD END OEM: No SHIFT ROD ASSEMBLY OEM: Fits: with V6 & V with 4 cyl 3.0L Fits: with V6 & V with 4 cyl 3.0L No NUT OEM: No SCREW OEM: No WIPER OEM: No SCREW OEM: No COVER & SEAL ASSY. OEM: No GASKET OEM: No ORING OEM: GLM S REDESIGN OF THE COVER & SEAL ASSEMBLY GLM proudly uses Smalley* internal snap ring for holding the sealing bushing. Unlike the OEMs which locks it dead. No special tools are required for replacing the seal and a service job can be finished in seconds! *Smalley Steel Ring Co. is a GM vender No OEM: A. A. View 50

51 Cobra No TUBE OEM: LOWER GEAR HOUSING DRIVE SHAFT ( ) No ORING UPPER OEM: No UPPER DRIVE SHAFT OEM: No SCREW OEM: No GUIDE OEM: No BEARING HOUSING OEM: No SEAL TUBE OEM: No NUT OEM: No WASHER OEM: No WATER PASSAGE HOUSING OEM: No ORING LOWER OEM: No SHIM OEM: No SHIM OEM: No SHIM OEM: No PLUG OEM: No LOWER DRIVE SHAFT OEM: Fits: with V6 & V with 4 cylinder 3.0L No THRUST WASHER OEM: No PINION BEARING OEM: No PINION BEARING OEM: No GASKET OEM: No THRUST BEARING OEM: Fits: with V6 & V with 4 cyl 3.0L Fits: with 3.0L with 2.3L Water Passage No PINION NUT OEM:

52 52

53 Section 5 OMC Cobra Transom Assembly Parts Transom Assembly Breakdown ( ) Shift Cable ( ) Transom Service Kit ( )...57 Transom Components OMCCobra Sterndrive Section 5 53

54 Cobra TRANSOM ASSEMBLY ( ) Transom Service Kit No Shift Cable Assy. Kit No Guide Tube Kit No Trailer Clips No Outdrive Mounting Kit No

55 Cobra TRANSOM ASSEMBLY ( ) GLM No. Ref No. OEM No. Description Gimbal Bearing Oil Seal Shift Cable Assembly Set Screw Anchor Guide Oring Gasket Seal Oring UJoint Bellow Clamp Exhuast Bellow Clamp Oring Shift Cable Bellow Oring Oring Oring Oring Fitting Screw Lock Nut Tie Strip Tie Strip Anode ( ) Screw Lockwasher Screw Transom Mount Seal Washer Oring Transom Service Kit Outdrive Mounting Kit N/A N/A Shift Cable Assembly Kit Guide Tube Kit Trailer Clips Included in Kit No Included in Kit No Included in Kit No Included in Kit No

56 No SHIFT CABLE ADJUSTMENT TOOL KIT OEM: Cobra SHIFT CABLE NEW No BELLCRANK ALIGNMENT PLATE OEM: NEW No SHIFT CABLE TOOL OEM: NEW Kit contains: GLM OEM ITEM Bellcrank Alignment Plate Shift Cable Tool No SHIFT CABLE ASSEMBLY KIT NEW No SHIFT CABLE ASSEMBLY OEM: No SET SCREW OEM: Kit contains: GLM OEM ITEM Shift Cable Assembly Drive Installation Kit Bellow Cable Tie Cable Tie Cobra ( ) No GUIDE TUBE KIT No GUIDE TUBE OEM: No ANCHOR OEM: Kit contains: GLM OEM ITEM Guide Tube (2) Set Screw Anchor Oring For All Clutch Dog Cobra 56

57 Cobra TRANSOM SERVICE KIT No Kit contains: GLM OEM ITEM Seal Kit Shift Cable Bellow UJoint Bellow Exhaust Bellow Hose Clamp Hose Clamp Gimbal Bearing Cable Tie Cable Tie No OUTDRIVE MOUNTING KIT OEM: Cobra ( ) TRANSOM COMPONENTS No GIMBAL BEARING ASSEMBLY OEM: Kit contains: GLM OEM ITEM Gasket Seal (2) Oring For All Clutch Dog Cobra ( ) GLM Built in U.S.A. No SHIFT CABLE BELLOW OEM: No EXHAUST BELLOW OEM: No UJOINT BELLOW OEM: No TRAILER CLIPS OEM: NEW Cobra ( ) Cobra ( ) Cobra ( ) For OMC Cobra 57

58 58

59 Section 6 OMC Stringer Upper Gear Housing Parts 1985 & older Upper Gear Housing Applications Upper Gear Housing Complete...61 Upper Gear Housing Empty...62 Bearing Retainer Assembies...63 Upper Gear Housing Rebuild Kits Upper Gear Housing Seal Kits...64 Upper Gear Sets...65 Upper Gear Housing Breakdown ( ) Upper Gear Housing Components Drive Shafts...70 Steering Components OMCStringer Sterndrive Section 6 59

60 Stringer COMPLETE UPPER AND LOWER GEAR HOUSING ASSEMBLY Model APPLICATION CHART ( ) Year Upper Complete Upper Housing Lower Complete Lower Housing All 4Cylinder All 4Cylinder *# V6, 165 HP, 250 CID V6 Chevy, 3.8L, 229 CID V6 Chevy, 4.3L, 262 CID V6 Chevy, 5.0L, 307 CID V6 Chevy, 5.0L, 305 CID * 28600* V8 Ford, 5.0L, 302 CID V8 Chevy, 5.7L, 350 CID * 28600* V8 Ford, 5.8L, 351 CID V8 Ford, 5.8L, 351 CID * 28600* *The GLM #28830 complete lower gear housing is a direct replacement for the OMC lower gear housing. The installation of the ESA (Electronic Shift Assist) components and shift cable are necessary to replace the lower gear housing on the OMC sterndrives with hydraulic shift. #The GLM #28830 complete V6/V8 lower gear housing (large diameter) can be used to replace the fourcylinder lower gear housing (small diameter) if the upper housing gear ratio is changed to 21:20. The installation of the ESA (Electronic Shift Assist) components and shift cable are necessary to replace the lower gear housing on the OMC sterndrives with hydraulic shift. ^The GLM #28600 lower housing will not replace the OMC lower housings with hydraulic shift. 60

61 Stringer COMPLETE UPPER GEAR HOUSING ASSEMBLY ( ) 100% New Engine Teeth on Original Gears GLM No. OEM No. 4Cylinder, All 21T/18T V6, 3.8L, 229 CID 21T/20T L6, 165 HP 21T/19T V6, 4.3L, 262 CID 21T/19T V8 Ford, 5.0L, 302 CID 21T/17T V8 Chevy, 5.0L, 305 CID 21T/17T V8 Chevy, 5.7L, 350 CID 21T/16T V8 Ford, 5.8L, 351 CID 21T/16T

62 Stringer UPPER GEAR HOUSING ( ) No OEM: OMC Empty Gear Housing Ready for Your Components Don t scrap a boat because of a corroded upper gear housing! Replace it with a NEW housing from GLM. The GLM #27000 will work on all OMC sterndrives and will accept the original internal and external OMC components. 62

63 No T/16T OEM: No T/17T OEM: No T/18T OEM: No T/19T OEM: No T/20T OEM: Stringer BEARING RETAINER ASSEMBLIES ( ) No T/16T No T/17T No T/18T No T/19T No T/20T UPPER GEAR HOUSING REBUILD KIT ( ) 63

64 No OEM: Stringer UPPER GEAR HOUSING SEAL KITS No OEM: For 100 thru 245 ( ) For All Models ( ) UPPER GEAR HOUSING KITS APPLICATION CHART ( ) Engine Teeth on Original Gears Upper Rebuild Kit Bearing Retainer Kit Upper Seal Kit 4Cylinder, All 21T/18T V6, 3.8L, 229 CID 21T/20T L6, 165 HP 21T/19T V6, 4.3L, 262 CID 21T/19T V8 Ford, 5.0L, 302 CID 21T/17T V8 Chevy, 5.0L, 305 CID 21T/17T V8 Chevy, 5.7L, 350 CID 21T/16T V8 Ford, 5.8L, 351 CID 21T/16T

65 Stringer UPPER GEAR SETS ( ) GLM is first in the marine industry to have all of the OMC upper housing gear ratios. Different size engines require different gear ratios in the drive. The manufacturer changes these ratios with different gear sets. The gear ratio change is in the upper gear housing*. All OMC upper gear housings are identical** except for the tooth count on the gears. Below is a chart showing the tooth count for the different size engines used with OMC sterndrives. All GLM upper gear sets come with: GLM No. OEM No. Item Bearing Bearing Bearing Engine Teeth on Original Gears GLM No. OEM No. 4Cylinder, All 21T/18T V6, 3.8L, 229 CID 21T/20T L6, 165 HP 21T/19T V6, 4.3L, 262 CID 21T/19T V8 Ford, 5.0L, 302 CID 21T/17T V8 Chevy, 5.0L, 305 CID 21T/17T V8 Chevy, 5.7L, 350 CID 21T/16T V8 Ford, 5.8L, 351 CID 21T/16T *All lower gear housing ratios are either 2.0:1 for the fourcylinder engines or 1.83:1 for the six and eightcylinder engines. **The original driven gears in 1973 and 1974 upper gear housings are not machined for a centering cone. All 1975 and newer driven gears and all GLM replacement driven gears are machined for a centering cone. A new drive shaft with shorter splines and a centering cone must be installed when replacing the original (noncentering cone) driven gear. Rebuild your OMC powered boat with high quality GLM parts! GLM is the source for OMC parts! 65

66 Stringer UPPER GEAR HOUSING ( ) Seal Kit 16 No Ball Gear Kit No Complete Water Pump Kit No Impeller Repair Kit No

67 Stringer UPPER GEAR HOUSING ( ) GLM No. Ref No. OEM No. Description GLM No. Ref No. OEM No. Description Upper Gearcase Assembly Retaining Ring Oring Bearing Retainer Oring (Electric Shift) Lockwasher Oring (400800) Screw Oring (Early Model) Seal Oring (Late Model) Spring Quad Ring Centering Cone Quad Ring Bearing Housing Gears 21: Shim Gears 21: Shim Gears 21: Shim Gears 21: Shim Gears 21: Shim Bearing Shim Bearing Shim Oring Shim Oil Seal Shim Ball Gear Shim Nut Shim Cover Shim Gasket Shim Gasket Shim Lock Nut Shim Oring Shim Bearing Shim Oil Seal Shim Drive Shaft (Low Profile) Shim Drive Shaft (High Profile) Shim Drive Shaft (High Profile) Shim Shaft Seal Shim Pump Housing Shim Oring Shim Key Shim Impeller Pump Plate Bearing Retainer Assy. 2.5/3.0L Pump Plate Bearing Retainer Assy. 3.8L Pump Drive Shaft (Low Profile) Bearing Retainer Assy. 4.3L Pump Drive Shaft (High Profile) Bearing Retainer Assy. 5.0L Oring Bearing Retainer Assy. 5.7L Bearing Cover Screw Screw Bracket Seal Kit Retainer Complete Water Pump Kit Retainer Ring Impeller Repair Kit Spacer Shaft Ball Gear Kit Screw Water Cover Stbd Water Cover Port Screw Set Gasket Bushing Gasket 67