1989 GMC K1500 Differential & Rear-End Components

Spartan Differential Locker, GM 8.5 in., 28-spline Axle, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: SPZ-17040

5.0 out of 5 stars ( 5 )

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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 )

Estimated Ship Date: Mar 18, 2026 if ordered today

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Axle Shafts, Direct Fit, New, Neoprene Boots, Front Left or Right, Cadillac, Chevrolet, GMC, Each

Part Number: AAZ-66-1009

3.86 out of 5 stars ( 14 )

Estimated Ship Date: Today

Ring and Pinion Gear, 4.11:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36216

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Differential Cover, 10-bolt, Nodular Iron, Black Powdercoated, GM 8.5 in., Each

Part Number: ARB-0750007B

4.0 out of 5 stars ( 2 )

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Differential Cover, 10-bolt, Nodular Iron, Red Powdercoated, GM 8.5 in., Each

Part Number: ARB-0750007

4.5 out of 5 stars ( 6 )

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Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

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Gear, Ring and Pinion, 4.56:1 Ratio, Reverse Rotation, 1.625 in. Pinion, 30 Spline, GM 8.25 in. IFS, Set

Part Number: YGA-24154

4.0 out of 5 stars ( 1 )

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

Part Number: SVL-2023698

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Pinion Bearing, Tapered Cone, 1.875 in. I.D., Cadillac, Chevrolet, GMC, Dodge, Oldsmobile, Pontiac, Each

Part Number: TMK-HM804846

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Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781" Carrier Bearing Journal

Part Number: SPZ-10718

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 9.5 in., Set

Part Number: YGA-24167

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-373

4.25 out of 5 stars ( 4 )

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Pinion Shims, Steel, Kit

Part Number: YGA-55009

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Part Number: YGA-20083

4.6 out of 5 stars ( 5 )

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Differential Ring and Pinion; GM 8.5 10 Bolt - 3.73 Ratio

Part Number: SVL-2023695

2.0 out of 5 stars ( 1 )

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Ring and Pinion Gears, GM 8.5/8.6 in., 4.88:1 Ratio, 30-spline, Standard, Must Use 2.73:1 or Numerically Higher Ratio Carrier, GM 8.5/8.6 in., Set

Part Number: SVL-2023704

5.0 out of 5 stars ( 1 )

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Crosspin Bolt, 5/16 in. Hex Head, Each

Part Number: YGA-33067

5.0 out of 5 stars ( 4 )

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Gear, Ring and Pinion, 4.11:1 Ratio, Reverse Rotation, 1.625 in. Pinion, 30 Spline, GM 8.25 in. IFS, Set

Part Number: YGA-24153

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Ring and Pinion Installation Kit, Master Kit, GM, 8.25 in. IFS, Kit

Part Number: MGR-R82RIFSMKT

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Front Axle Actuator, Electric, Cadillac, Chevy, GMC, Full Size Pickup/SUV, Each

Part Number: RNB-600-101

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Today

Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"

Part Number: YGA-10406

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Estimated Ship Date: Mar 31, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"

Part Number: YGA-10409

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Estimated Ship Date: Mar 31, 2026 if ordered today

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