GMC K1500 USA Standard Gear Parts and Accessories

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

Part Number: SPZ-17040

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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 Carrier, Spartan Locker, 30-spline, Steel, Rear, GM 8.875 in., Each

Part Number: SPZ-17032

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Ring and Pinion Gear, 3.73:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36214

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Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36045

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Ring and Pinion Gears, 5.38:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36053

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Ring and Pinion Gears, 4.11:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36041

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USA Standard Ring & Pinion "thick" gear set for Dana 44 in a 5.13 ratio

Part Number: SPZ-36051

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Reverse Ring Gear Rotation, GM 8.25 in., IFS, Set

Part Number: SPZ-36207

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Estimated Ship Date: Apr 13, 2026 if ordered today

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

Part Number: SPZ-36211

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears, 3.08:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Truck, Set

Part Number: SPZ-36173

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 9, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625" Carrier Bearing Journal

Part Number: SPZ-10723

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gear, 4.56:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36218

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Ring and Pinion Gears,USA Standard 8.5" GM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625" Carrier Bearing Journal

Part Number: SPZ-10725

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Ring and Pinion Gears, 3.23:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set

Part Number: SPZ-36212

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 8.6" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10733

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Estimated Ship Date: Apr 13, 2026 if ordered today

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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: Apr 9, 2026 if ordered today

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USA Standard Master Overhaul kit for the '99 and newer GM 8.25" IFS differential

Part Number: SPZ-37053

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36044

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Estimated Ship Date: Apr 9, 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: Apr 13, 2026 if ordered today

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Driveshaft, Front, 2-piece, Assembled, Balanced, Steel, 29.500 in. Length, Chevrolet, GMC, Each

Part Number: SPZ-44293

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Estimated Ship Date: Apr 6, 2026 if ordered today

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USA Standard Master Overhaul kit for the GM 8.5 front differential

Part Number: SPZ-37056

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Driveshaft, Front, 2-piece, Assembled, Balanced, Steel, 23.625 in. Length, Chevrolet, GMC, Each

Part Number: SPZ-44290

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Estimated Ship Date: Apr 13, 2026 if ordered today

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USA Standard Ring & Pinion gear set for GM 9.5" in a 3.42 ratio

Part Number: SPZ-36298

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 8.6" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10732

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Estimated Ship Date: Apr 13, 2026 if ordered today

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