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

USA Standard Gear Spartan Lockers AMC Model 20 SL M20-29

Differential Carrier, Spartan Locker, Steel, 12-bolt, 29-spline, Rear, AMC Model 20, AMC, Hummer, Jeep, Each

Part Number: SPZ-17006

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Spartan Lockers Toyota 8.0 (7.8) Inch SL T8-30

Spartan Differential Locker, Toyota, 8.0 in., 30-spline Axle, Rear, Each

Part Number: SPZ-17015

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Spartan Lockers Dana 30/M186, Jeep Wrangler JL SL D30JL-27

Spartan Locker for Dana 30 JL M186 Differential

Part Number: SPZ-17046

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK GM9.25IFS-B

Differential Rebuild Kits, USA Standard Master Overhaul kit for the '11 & up GM 9.25" IFS front differential

Part Number: SPZ-37146

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Axle Shafts for 1974-1979 WAGONEER - ZA W24142

Dana 44 19/30Spline 4340 FRONT AXLE kit w/ 297X, 74-79 WAGONEER, DRUM BRAKE

Part Number: SPZ-35067

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

USA Standard Gear Spartan Lockers Nissan H233B SL NPATROL-31

Differential Carrier, Spartan Locker, Steel, 31-spline, Rear, for Nissan H233B, Each

Part Number: SPZ-17036

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

USA Standard Gear Spartan Lockers Dana 35 SL M35-1.6-27

Spartan Differential Locker, Dana 35, 27-spline Axle, Jeep, 1.625 in. Carrier, Each

Part Number: SPZ-17008

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powertrax Lock-Right Lockers Dana 35 2311-LR

3 out of 5 stars ( 2 )

Estimated Ship Date: Today

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USA Standard Gear Spartan Lockers Toyota 7.5 Inch SL T7.5-27

Spartan Differential Locker, Toyota 7.5 in., 27-spline Axle, Toyota, Each

Part Number: SPZ-17014

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

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

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

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: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 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

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK DS135

Differential Rebuild Kits, USA Standard Master Overhaul kit for the Dana S135 & S150

Part Number: SPZ-37137

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

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

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2121 GM 10.5 in. (14-bolt) 4.56 Gears

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

Part Number: SPZ-10834

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 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

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 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

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2031 GM 8.6 in. 3.42 Gears

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

Part Number: SPZ-10742

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2033 GM 8.6 in. 4.11 Gears

Ring and Pinion Gears, 8.6 in. GM, 4.11 Ratio, 1.626 in. Pinion Shaft Diameter, Rear, Kit

Part Number: SPZ-10744

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2071 Chrysler 9.25 in. 3.55 Gears

Ring and Pinion Gears,USA Standard 9.25" CHRYSLER, 3.55 Ratio Rear Ring & Pinion GearInstall Kit 1.62" Inside Diameter Axle Bearings & Seals

Part Number: SPZ-10782

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2077 Chrysler 9.25 in. 3.55 Gears

Ring and Pinion Gears,USA Standard 9.25" CHRYSLER, 3.55 Ratio Rear Ring & Pinion GearInstall Kit 1.705" Inside Diameter Axle Bearings & Seals

Part Number: SPZ-10788

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2083 Chrysler 9.25 in. ZF 3.55 Gears

Ring and Pinion Gears,USA Standard ZF 9.25" CHRYSLER, 3.55 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10794

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2008 GM 8.5 in. 4.11 Gears

Ring and Pinion Gears,USA Standard 8.5" GM, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781" Carrier Bearing Journal

Part Number: SPZ-10719

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

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

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2163 Dana 80 4.88 Gears

Ring and Pinion Gears,USA Standard 11.25" Dana 80, 4.88 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10876

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2076 Chrysler 9.25 in. 3.21 Gears

Ring and Pinion Gears,USA Standard 9.25" CHRYSLER, 3.21 Ratio Rear Ring & Pinion GearInstall Kit 1.705" Inside Diameter Axle Bearings & Seals

Part Number: SPZ-10787

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today