1985 GMC Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Dorman 10 Bolt GM 7.5/7.625 Inch Differential Cover 697-701

Differential Cover, Steel, Natural, Chevy, GMC, Oldsmobile, Pontiac, 7.500 in., 7.625 in., 10-Bolt, Each

Part Number: RNB-697-701

4.0 out of 5 stars ( 3 )

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Yukon Gear & Axle 14 Bolt GM 9.5 Inch Differential Cover YP C1-GM9.5

Differential Cover, 14-bolt, Steel, Chrome, GM 9.5 in., Each

Part Number: YGA-32018

Not Yet Reviewed

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USA Standard Gear Spider Gear Sets ZIKGM8.5-S-28

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

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Motive Gear Ring and Pinion Sets GM12-308 GM 8.875 in. (12-bolt) truck 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.875 in., 12-Bolt, Set

Part Number: MGR-GM12-308

3.0 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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Yukon Gear & Axle Master Overhaul Kits YK GM8.5-HD-F

Yukon Master Overhaul kit for GM 8.5" front differential with aftermarket positraction

Part Number: YGA-14089

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Motive Gear Light-Duty Axle Shafts GM10FAXR

Axle Shaft, OEM Replacement, Front Inner and Outer, Passenger Side, 1541H Manganese, 28/19-spline, 29.090 in. Length, GMC, Kit

Part Number: MGR-GM10FAXR

4.0 out of 5 stars ( 1 )

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Yukon Gear & Axle Pinion Nut Washers YSPPN-033

Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

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Richmond Gear Ring and Pinion Sets 69-0171-1 GM 8.5/8.6 in. 5.13 Gears

Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901711

5.0 out of 5 stars ( 1 )

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Motive Gear Ring and Pinion Sets D70-410 Dana 70 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, Dana 70, Set

Part Number: MGR-D70-410

Not Yet Reviewed

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Yukon Gear & Axle King Pin Replacement Components YP KP-002

Replacement partial king pin kit for Dana 60

Part Number: YGA-32305

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Yukon Gear & Axle Spider Gear Kits YPKGM12-P-30

Spider Gears, Side Gears, Cross Shaft Pin, Yukon Dura Grip Carrier Style, Rear, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16039

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Motive Gear Ten Factory Axle Shafts MG20127B

Axle Shaft, Direct Fit, 4340 Chromoly, 19-Spline, 9.940 in. Length, Chevy, GMC, Jeep, Each

Part Number: MGR-MG20127B

Not Yet Reviewed

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Eaton Detroit Lockers GM 9.5 Inch 225C135A

Differential, Eaton Detroit Locker, 33-Spline, GM, 9.5 in., 14-Bolt, Each

Part Number: ETN-225C135A

5.0 out of 5 stars ( 3 )

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Timken Pinion Bearing Races HM803110

Pinion Bearing Race, Fits Bearing with 3.500 in. Outside Diameter, Each

Part Number: TMK-HM803110

Not Yet Reviewed

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Spicer Drivetrain Products Differential Cover Performance Gaskets 34687

Differential Cover Gasket, Performance, Composite with Steel Core, Dana 60, Chrysler, Dodge, Ford, Each

Part Number: SDH-34687

4.67 out of 5 stars ( 3 )

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Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1063-1

Ring and Pinion Installation Kit, Complete, GM 10.5 in. (14-bolt), Rear, Kit

Part Number: RMG-XL-1063-1

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Yukon Gear & Axle Grizzly Lockers Dana 60 YGLD60-3-30

Grizzly Locker, Dana 60, 30 Spline, 4.10 Down Ratio, Each

Part Number: YGA-28002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Yukon Gear & Axle 10 Bolt GM 7.5/7.625 Inch Differential Cover YP C1-GM7.5

Differential Cover, 10-bolt, Steel, Chrome, GM 7.5 in., GM 7.625 in., Each

Part Number: YGA-32014

5.0 out of 5 stars ( 1 )

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Richmond Gear Complete Ring and Pinion Installation Kits 83-1020-1

Ring and Pinion Installation Kit, Bearings and Shims, 8.5 in. GM Front, Kit

Part Number: RMG-8310201

Not Yet Reviewed

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Powertrax Lock-Right Lockers GM 7.5 Inch 1930-LR

Differential, Lock-Right, Locker, 26-Spline, GM, 7.5 in., Each

Part Number: PWT-1930-LR

4.75 out of 5 stars ( 8 )

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Motive Gear Ring Gear Bolts 331422

Ring Gear Fasteners, Replacement Bolt, Hex Head, Steel, Black Oxide, 1/2-20 in. RH, GM, 10.5 in., 14 Bolt, 4.10 and Lower Carrier, Each

Part Number: MGR-331422

Not Yet Reviewed

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Yukon Gear & Axle Spider Gear Kits YPKGM8.5-S-28

Spider Gears, Open, Front or Rear, Internal Kit, Side Gears, Cross Pin and Bolt, GM, 8.5 in., 28 Spline, Kit

Part Number: YGA-16054

4.0 out of 5 stars ( 4 )

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Auburn Gear Grip-N-Loc 26 Spline Differential GM 7.5/7.625 Inch 546044

Auburn Gear Grip-N-Loc 26 Spline Differential GM 7.5/7.625 Inch 546044

Differential, Auburn, Grip-N-Loc, Limited Slip, 26-Spline, GM, 7.5 in., 7.625 in., Each

Part Number: AUB-546044

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USA Standard Gear Ring and Pinion Sets ZG GM14T-373 GM 10.5 in. (14-bolt) 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 10.5 in. (14-bolt), Rear, Chevrolet, GMC, Set

Part Number: SPZ-36182

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