1981 USA Standard Gear Differential & Rear-End Components

Ring and Pinion Installation Kit, Ford 8.8 in., Rear, Kit

Part Number: SPZ-37030

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Estimated Ship Date: Monday 1/19/2026

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USA Standard Master Overhaul kit Dana 60, Front, Kit

Part Number: SPZ-37020

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Estimated Ship Date: Monday 1/19/2026

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Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 30-spline, GM 8.875 in. (12-bolt) Truck, Rear, Chevrolet, GMC, Kit

Part Number: SPZ-37043

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Estimated Ship Date: Monday 1/19/2026

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USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit

Part Number: SPZ-37057

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, GM 8.875 in. (12-bolt), Car/Truck, 30-spline, Buick, Chevy, GMC, Pontiac, Kit

Part Number: SPZ-39021

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

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

Part Number: SPZ-35050

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Estimated Ship Date: Monday 1/19/2026

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USA Standard Master Overhaul kit for the Chrysler 9.25" rear differential.

Part Number: SPZ-37002

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Estimated Ship Date: Monday 1/19/2026

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Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 29-spline, Dana 60, Rear, Chevrolet, Dodge, Ford, GMC, Jeep, Plymouth, Kit

Part Number: SPZ-37021

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Estimated Ship Date: Monday 1/19/2026

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USA Standard Master Overhaul kit for the Ford 9" LM102910 differential, w/ solid spacer

Part Number: SPZ-37034

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Estimated Ship Date: Feb 2, 2026 if ordered today

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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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, Ford 8.8 in., 28-spline, 10-bolt, Ford, Lincoln, Mazda, Mercury, Kit

Part Number: SPZ-39015

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Estimated Ship Date: Feb 3, 2026 if ordered today

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USA Standard Gear standard spider gear set for Ford 7.5"

Part Number: SPZ-39014

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 3, 2026 if ordered today

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Axle Shaft, 28-Spline, 31.313 in. Length, Rear, Chevy, GMC, Each

Part Number: SPZ-35172

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Estimated Ship Date: Monday 1/19/2026

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Axle Shaft, 26-Spline, 28.438 in. Length, Rear, Buick, Chevy, Oldsmobile, Each

Part Number: SPZ-35059

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/19/2026

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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: Feb 2, 2026 if ordered today

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4340 Chromoly Axle, '79-'87 GM Truck & Blazer, RH inner, 28spl, uses 5-760X u/joint

Part Number: SPZ-35087

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Estimated Ship Date: Feb 2, 2026 if ordered today

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8.8" Ford bearing & seal kit.

Part Number: SPZ-58007

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Estimated Ship Date: Feb 2, 2026 if ordered today

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4340 Chromoly axle shaft, left hand inner for '79-'87 GM, 35.46", uses 5-760X u/joint

Part Number: SPZ-35088

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Estimated Ship Date: Feb 2, 2026 if ordered today

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USA Standard Gear replacement spider gear set for Dana 60, 35 spline

Part Number: SPZ-39009

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 3, 2026 if ordered today

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USA Standard Gear standard spider gear set for GM 7.5", 26 spline

Part Number: SPZ-39023

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Estimated Ship Date: Feb 3, 2026 if ordered today

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9" FORD BRG & SEAL KIT LM102910, KOYO BRGS

Part Number: SPZ-58043

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Axle Shaft, 30-Spline, 33.375 in. Length, Rear, Chevy, GMC, Each

Part Number: SPZ-35055

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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9.25" CHY REAR PINION KIT, KOYO BRGS

Part Number: SPZ-60004

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Estimated Ship Date: Feb 2, 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: Feb 2, 2026 if ordered today

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Differential Carrier Rebuild Kits and Spider Gears, Ford 8/9 in., Side Gears, Rear, Open, 28-spline, Ford, Lincoln, Mercury, Kit

Part Number: SPZ-39017

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 3, 2026 if ordered today

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