1978 USA Standard Gear Parts and Accessories

USA Standard Master Overhaul kit Dana 44 differential, 30 spline, rear axle

Part Number: SPZ-37015

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Ring and Pinion Gears, 3.70:1 Ratio, Standard Ring Gear Rotation, Ford 9 in., Set

Part Number: SPZ-36137

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Ring and Pinion Gears, 3.73:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 30, Set

Part Number: SPZ-36024

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Estimated Ship Date: Apr 10, 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 13, 2026 if ordered today

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USA Standard Master Overhaul kit for the Ford 7.5 differential

Part Number: SPZ-37027

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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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Ring and Pinion, Installation Kit, Dana 44, Kit

Part Number: SPZ-58019

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Axle Shaft, 28-Spline, 30.125 in. Length, Rear, Chevy, Pontiac, Each

Part Number: SPZ-35050

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USA Standard Master Overhaul kit for the GM 8.5 front differential

Part Number: SPZ-37056

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Ring and Pinion Gears, 3.23:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set

Part Number: SPZ-36194

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Estimated Ship Date: Apr 9, 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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Ring and Pinion Gears, 3.42:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set

Part Number: SPZ-36195

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Estimated Ship Date: Apr 13, 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: Apr 16, 2026 if ordered today

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USA Standard Master Overhaul kit for the '63-'79 GM CI Corvette differential

Part Number: SPZ-37063

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Ring and Pinion Gears, 3.31:1 Ratio, 30-spline, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: SPZ-36121

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USA Standard Ring & Pinion "thick" gear set for GM 12 bolt truck in a 4.11 ratio

Part Number: SPZ-36178

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Estimated Ship Date: Apr 14, 2026 if ordered today

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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: Apr 9, 2026 if ordered today

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USA Standard Gear standard spider gear set for Ford 7.5"

Part Number: SPZ-39014

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Axle 9" FORD REAR, '77&UP TRK31spl, 32", Use_SET20 BRG

Part Number: SPZ-11988

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears, 3.55:1 Ratio, 29-spline, Standard Ring Gear Rotation, Chrysler 9.25 in., Set

Part Number: SPZ-36018

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Estimated Ship Date: Apr 13, 2026 if ordered today

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USA Standard Master Overhaul kit for the Ford 9" LM501310 differential

Part Number: SPZ-37035

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 70, Set

Part Number: SPZ-36088

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

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8.8" FORD 3.08 R&P ** USA STANDARD GEAR **

Part Number: SPZ-36120

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Estimated Ship Date: Apr 9, 2026 if ordered today

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USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offe

Part Number: SPZ-36315

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Estimated Ship Date: Apr 9, 2026 if ordered today

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