1981 GMC K1500 Differential & Rear-End Components

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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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

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Differential Crush Sleeve; Fits GM 8.5 in.

Part Number: RMG-19-0004-1

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Differential Carrier Cases, Extreme Heavy Duty, GM 8.5 in., 28/30 Spline, 2.73 and Up Ratio, Each

Part Number: YGA-20084

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT456T

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Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

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Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Truck, Set

Part Number: YGA-24132

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Ring and Pinion Gear, 3.90:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36215

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Pinion depth shim kit for Toyota8", GM 7.5", 8.2" & 12 bolt truck

Part Number: YGA-55064

5.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-126

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Ring Gear Spacer, 0.200 in. Thick, 10-bolt, GM 8.5 in., Each

Part Number: MGR-085050

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Differential Shaft Lock Bolt, Steel, Cadillac, Chevy, GMC, Ford, Mercury, Each

Part Number: RNB-81048

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Spider Gears, Internal Kit, Front or Rear, Side Gears, Cross Shaft Pin and Bolt, GM, 8.5 in., 30 Spline, Kit

Part Number: YGA-16055

2.0 out of 5 stars ( 1 )

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Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: NTL-M88048

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Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885273

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Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Crush Sleeve, Steel, 0.620 in. Tall, Each

Part Number: YGA-33097

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Ring and Pinion Gear, 2.73:1 Ratio, GM 8.5/8.6, 10 Bolt Cover, 30 Spline, 10 Ring Gear Bolts, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Set

Part Number: YGA-24490

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: SPZ-36213

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, Large Journal, GM 8.5 in., Kit

Part Number: YGA-11069

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Axle Shaft, 30-Spline, 31.438 in. Length, Rear, Chevy, GMC, Each

Part Number: SPZ-35053

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in. 12-Bolt Truck, Each

Part Number: PWT-GT248730

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 28, 2026 if ordered today

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Ring and Pinion-GM 8.875

Part Number: MGR-GM12-456A

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Axle Shaft, Front Inner, 4340 Chromoly, 28 Spline, 35.46 in. Length, GM 8.5 in., Each

Part Number: YGA-21366

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 10, 2026 if ordered today

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

Part Number: RNB-697-810

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