1985 GMC Transmission & Drivetrain

TransGo Automatic Transmission Boost Valves 7-300

Boost Valve/Bushing, Intermediate and Reverse, 700R4/200-4R, Kit

Part Number: TRG-7-300

4.67 out of 5 stars ( 6 )

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Timken Pinion Bearings HM88649

Differential Pinion Bearing, 1.375 in. Inside Diameter, Each

Part Number: TMK-HM88649

5.0 out of 5 stars ( 2 )

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Spicer Drivetrain Products Differential Cover Kits 707105-1X

Differential Cover, Steel, Natural, Dana 70, Kit

Part Number: SDH-707105-1X

5.0 out of 5 stars ( 1 )

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ACDelco GM Genuine Parts Wheel Bearings 19312436

Wheel Bearing, GM Genuine Part, for use on Honda®, AMC, Buick, Cadillac, Chevy, Dodge, Ford, GMC, Isuzu, Jeep, Mercury, Olds, Plymouth, Pontiac, Each

Part Number: ADO-5707

Not Yet Reviewed

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Motive Gear Open Differential Internal Kits GM10BI-30

Differential Parts Kit, Open Differential, Includes 30-spline Side and Pinion Gears/Washers/Pinion Shaft/Bolt

Part Number: MGR-GM-10BI-30

4.9 out of 5 stars ( 10 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM12T-411 GM 8.875 in. (12-bolt) truck 4.11 Gears

Ring & Pinion Gear, 4.11 Ratio, GM, 8.875 in. Truck, Set

Part Number: YGA-24130

5.0 out of 5 stars ( 3 )

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National Bearing Wheel Bearings 6408

Bearing, Roller, Universal, Each

Part Number: NTL-6408

5.0 out of 5 stars ( 2 )

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Centerforce II Clutch Kits KCFT240916

CLUTCH

Part Number: CTF-KCFT240916

5.0 out of 5 stars ( 1 )

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Spicer Drivetrain Products Locking Hub Conversion Kits 10028883

Hub Conversion, Manual, Dana 60, 35 Spline, Kit

Part Number: SDH-10028883

Not Yet Reviewed

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American Powertrain Hydramax Hydraulic Clutch Release Systems HMGM01203G

Throwout Bearing Conversion, Hydraulic, Hydramax, GM, Tremec, Kit

Part Number: AWR-HMGM01203G

Not Yet Reviewed

Estimated Ship Date: Jun 25, 2026 if ordered today

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Estimated Ship Date: Jun 25, 2026 if ordered today

UMI Performance 1978-88 GM G-Body Brake Conversion Kits 304647

UMI Performance 1978-88 GM G-Body Brake Conversion Kits 304647

Brake hub, Aluminum, C5/C6 Brake Conversion Hubs, Bearings, Brackets, Kit

Part Number: UPI-304647

Not Yet Reviewed

Estimated Ship Date: Jul 3, 2026 if ordered today

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Estimated Ship Date: Jul 3, 2026 if ordered today

Pioneer 139-Tooth Flexplate FRA-143

FLEXPLATE

Part Number: PIO-FRA-143

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG D60-538 Dana 60 5.38 Gears

Ring and Pinion Gears, 5.38:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: YGA-24064

Not Yet Reviewed

Estimated Ship Date: May 29, 2026 if ordered today

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Estimated Ship Date: May 29, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Richmond Gear Pro Gear Ring and Pinion Sets 79-0013-1 Dana 60 5.38 Gears

5 out of 5 stars ( 2 )

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ACDelco Gold Universal Joint Straps 19470452

Universal Joint Strap Kit, Steel, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Pair

Part Number: ADO-45U0505

3.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Differential Pinion Yokes YY D60-1330-29U

Yukon yoke for Dana 60 and 70 with a 1330 U/Joint size

Part Number: YGA-41025

Not Yet Reviewed

Estimated Ship Date: May 29, 2026 if ordered today

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Estimated Ship Date: May 29, 2026 if ordered today

Motive Gear Ring and Pinion Sets GM10-430 GM 8.5/8.6 in. 4.30 Gears

Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-430

1.0 out of 5 stars ( 1 )

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Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19689-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19689-010

4.5 out of 5 stars ( 2 )

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Timken Throwout Bearings 614018

Throwout Bearing, Standard, Self-aligning, Buick, Checker, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TMK-614018

3.67 out of 5 stars ( 3 )

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RAM 200 Series Clutch Discs 202

Clutch Disc, 200 Series, 1.125 in. - 10-spline, Organic, 11.00 in. Diameter, AMC, Buick, Chevy, GMC, Jeep

Part Number: RAM-202

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG GM9.5-373 GM 9.5 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, 1997-2013, With 33 Spline C-clip Axles, Set

Part Number: YGA-24166

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 29, 2026 if ordered today

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Estimated Ship Date: May 29, 2026 if ordered today

QuickTime 153-Tooth Flexplate RM-922

Flexplate, 153 Tooth, Internal Balance, 2-Piece Rear Main Seal, Steel, Chevy, Each

Part Number: QTI-RM-922

4.2 out of 5 stars ( 5 )

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Yukon Gear & Axle Mini Spools YP MINSGM12-30

Mini spool for GM 12 bolt with 30 spline axles

Part Number: YGA-32227

4.0 out of 5 stars ( 2 )

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Dorman Clutch Pilot Bushings and Bearings 690-057

Pilot Bushing and Bearings, Stock, Roller, Powdered Metal, Each

Part Number: RNB-690-057

5.0 out of 5 stars ( 2 )

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Yukon Gear & Axle U-Joints YUJ1310

U-Joint, Spicer 1310, Steel, Each

Part Number: YGA-42003

3.67 out of 5 stars ( 6 )

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National Bearing Differential Bearings NNTA36

Differential Carrier Bearing, Steel, 3.062 in. Diameter, Each

Part Number: NTL-A36

5.0 out of 5 stars ( 3 )

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