1981 GMC K1500 Differential & Rear-End Components

Gear, Ring and Pinion, 3.23:1 Ratio, GM 8.5 in., Set

Part Number: RNB-697-810

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Differential Clutch, Steel Pack, Dura-Grip, Eaton, 18-Plate, GM, 8.875 in., Set

Part Number: YGA-16110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 6, 2026 if ordered today

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Carrier Shims, Ford 8.8 in., GM 12-Bolt Truck, GM 9.3 in. C-Axle, Kit

Part Number: RMG-3800071

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Today

Axle Shaft, Ten Factory, Rear, 1541H Alloy, GM 8.5 in., 28 Spline, Chevy/GMC, Pickup/SUV, Each

Part Number: MGR-MG27104

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: RMG-78-1230-1

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit

Part Number: YGA-16052

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-114

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

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Estimated Ship Date: Mar 24, 2026 if ordered today

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Locking Hubs, Aluminum, 19-spline, Chevy, Dodge, Ford, GMC, Jeep, Plymouth, Pair

Part Number: YGA-29096

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 6, 2026 if ordered today

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885308

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Axle Shaft, Front Inner, 4340 Chromoly, 28 Spline, 19.51 in. Length, GM 8.5 in., Each

Part Number: YGA-21365

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 7, 2026 if ordered today

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Ring and Pinion Installation Kit, GM, 8.5 in., 10-Bolt, Kit

Part Number: RNB-697-100

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Gear, Ring and Pinion, 5.57:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901751

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Yukon steel spool for GM 12 bolt truck with 30 spline axles, 3.73 & up

Part Number: YGA-32190

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Thrust Washer, Differential Carrier Replacement Part, GM 8.875 in. (12-bolt), Each

Part Number: YGA-33381

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Estimated Ship Date: Today

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

Part Number: SPZ-36217

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Estimated Ship Date: Mar 23, 2026 if ordered today

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Differential Cross Shaft, Steel, 0.795 in. Diameter, Each

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Axle Shaft, OEM Replacement, Rear, C-clip, 1541H Alloy Steel, 28-spline Inner, 31.500 in. Length, Chevy, Each

Part Number: MGR-14039547

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High performance Yukon Ring & Pinion gear set for GM 12 bolt truck in a 4.88 ratio

Part Number: YGA-24133

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Estimated Ship Date: Apr 7, 2026 if ordered today

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8.5" GM PINION KIT, KOYO BRGS

Part Number: SPZ-60012

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Estimated Ship Date: Mar 26, 2026 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RTPK

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Thrust Washer, Positraction Differential, GM 8.875 in. Passenger Car, Truck, Each

Part Number: YGA-33382

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, Rear, Open, 28-spline, 10-bolt, GM 8.5 in., Kit

Part Number: SVL-10020477

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Estimated Ship Date: Mar 23, 2026 if ordered today

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Gear, Ring and Pinion, 3.42:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-127

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USA Standard Ring & Pinion "thick" gear set for GM 12 bolt truck in a 4.56 ratio

Part Number: SPZ-36180

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Estimated Ship Date: Mar 23, 2026 if ordered today

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