USA Standard Gear Differential & Rear-End Components Transmission & Drivetrain - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

USA Standard Gear Posi 30 Spline Differential Carriers Chrysler 8.75 Inch ZP PC8.75-SMTH

Differential Carrier, Power Lok, Positraction, Smooth Design, Chrysler 8.75 in., Rear, Steel, 41, 42, 89 Housings, Chrysler, Plymouth, Dodge, Each

Part Number: SPZ-59027

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2248 GM 9.5 in. 3.42 Gears

Ring and Pinion Gears,USA Standard 9.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10703

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2210 GM 8.2 in. 3.55 Gears

Ring and Pinion Gears,USA Standard 8.2" GM, 3.55 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10665

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Estimated Ship Date: Dec 30, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2172 Dana 80 3.73 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10885

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2133 Ford 10.5 in. 4.30 Gears

Ring and Pinion Gears,USA Standard 10.5" Ford, 4.30 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10846

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Axle Shafts ZA W24122

GM 8.5" 30spl FRONT AXLE KIT, w/ 297X, 79&UP 1/2TON TRK & BLAZER (ASSM_REQ)

Part Number: SPZ-35131

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2078 Chrysler 9.25 in. 3.90 Gears

Ring and Pinion Gears,USA Standard 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit 1.705" Inside Diameter Axle Bearings & Seals

Part Number: SPZ-10789

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2138 Ford 10.5 in. 4.56 Gears

Ring and Pinion Gears,USA Standard 10.5" Ford, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10851

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2120 GM 10.5 in. (14-bolt) 4.56 Gears

Ring and Pinion Gears,USA Standard 10.5" GM 14 Bolt, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10833

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2251 GM 9.5 in. 4.56 Gears

Ring and Pinion Gears,USA Standard 9.5" GM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10706

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2072 Chrysler 9.25 in. 3.90 Gears

Ring and Pinion Gears,USA Standard 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit 1.62" Inside Diameter Axle Bearings & Seals

Part Number: SPZ-10783

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear - Axle Shafts, Direct Fit for 1976-1977 BRONCO - ZA FBRONCO-3-35

Ford 9" Bronco axle kit, '76-'77, 35 spline

Part Number: SPZ-35036

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Estimated Ship Date: Dec 30, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2158 Dana 80 3.73 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10871

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2249 GM 9.5 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 9.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10704

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2250 GM 9.5 in. 4.11 Gears

Ring and Pinion Gears,USA Standard 9.5" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10705

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Spartan Lockers Dana 44 SL D44-19

D44 19spl SPARTAN LOCKER

Part Number: SPZ-17043

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Posi 31 Spline Differential Carriers GM 8.5 Inch, O axle ZP PGM8.5O-3-31

Differential Carrier, Limited Slip, 31-Spline Axle, Oldsmobile, 8.5 in., Each

Part Number: SPZ-59006

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5 Inch, O axle YDGGM8.5O-3-28

5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2119 GM 10.5 in. (14-bolt) 4.11 Gears

Ring and Pinion Gears,USA Standard 10.5" GM 14 Bolt, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10832

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2161 Dana 80 4.30 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 4.30 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10874

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2175 Dana 80 4.30 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 4.30 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10888

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2162 Dana 80 4.56 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10875

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Estimated Ship Date: Jan 5, 2026 if ordered today

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USA Standard Gear Spartan Lockers Dana 60 SL D60-30

Differential Carrier, Spartan Locker, Steel, 10-bolt, 30-spline, Rear, Dana 60, Chevy, Dodge, Ford, Jeep, Each

Part Number: SPZ-17003

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

USA Standard Gear Axle Shafts for 1982-1983 CJ5, 1982-1986 CJ7 - ZA W24114

D30 27spl FRONT AXLE KIT, w/ 297X, 82-86 CJ JEEP (ASSM_REQ)

Part Number: SPZ-35128

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

USA Standard Gear Differential Carriers ZP PC8.75-AGRS

8.75" Chrysler RACE Power Lok POSI , COMPLETE - SURE GRIP .

Part Number: SPZ-59026

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2176 Dana 80 4.56 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10889

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today