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 Master Overhaul Kits ZK F9.75-B

USA Standard Master Overhaul kit Ford, Lincoln, 9.75 in., Rear, Kit

Part Number: SPZ-37087

5.0 out of 5 stars ( 1 )

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USA Standard Gear Master Overhaul Kits ZK GM8.6-B

USA Standard Master Overhaul kit for the '09 and newer GM 8.6" differential

Part Number: SPZ-37060

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USA Standard Gear Spartan Limited Slip 27 Spline Differential Dana 30 SL D30-4-27-LSD

Differential Carrier, Spartan Helical Gear Limited Slip, Dana 30, Front, 27 Spline, 3.73 and Up Ratio, Each

Part Number: SPZ-10383

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USA Standard Gear Spider Gear Sets ZIKF8.8-T/L-31

Differential Carrier Rebuild Kits and Spider Gears, Ford 8.8 in., Side Gears, Rear, Limited Slip, Traction Loc, 31-spline, 10-bolt, Ford, Lincoln, Kit

Part Number: SPZ-39032

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Nov 14, 2025 if ordered today

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Estimated Ship Date: Nov 14, 2025 if ordered today

USA Standard Gear Ring and Pinion Sets ZG F8.8-513 Ford 8.8 in. 5.13 Gears

Ring and Pinion Gears, 5.13:1 Ratio, 30-spline, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: SPZ-36128

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USA Standard Gear Master Overhaul Kits ZK GM55CHEVY

Ring and Pinion Installation Kit, GM 55P/55T, Rear, Kit

Part Number: SPZ-37047

3.33 out of 5 stars ( 3 )

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USA Standard Gear Axle Shafts ZA G3969285

Axle Shaft, 30-Spline, 30.125 in. Length, Rear, Chevy, GMC, Each

Part Number: SPZ-35058

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USA Standard Gear Spartan Lockers Chrysler 8.25 Inch SL C8.25-29

Spartan Differential Locker, Chrysler 8.25 in., 29-spline Axle, Chrysler, Dodge, Jeep, Plymouth, Each

Part Number: SPZ-17038

4.0 out of 5 stars ( 1 )

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USA Standard Gear Ring and Pinion Sets ZG GM12P-373 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Passenger Car, Set

Part Number: SPZ-36167

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Estimated Ship Date: Nov 13, 2025 if ordered today

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Estimated Ship Date: Nov 13, 2025 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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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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USA Standard Gear Master Overhaul Kits ZK GM8.5-HD

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

Part Number: SPZ-37057

4.0 out of 5 stars ( 1 )

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USA Standard Gear Master Overhaul Kits for 2015-2023 F-150, MUSTANG - ZK F8.8-D

Differential Rebuild Kits, USA Standard Master Overhaul kit for '15 & up Mustang and F150

Part Number: SPZ-37153

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 13, 2025 if ordered today

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Estimated Ship Date: Nov 13, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Richmond Gear Ring and Pinion Installation Half Kits for 2015-2024 F-150, MUSTANG - 83-1047-B

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USA Standard Gear Axle Shafts ZA G12471369

Axle Shaft, 30-Spline, 33.750 in. Length, Rear, Chevy, Each

Part Number: SPZ-35040

4.4 out of 5 stars ( 5 )

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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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USA Standard Gear Master Overhaul Kits ZK C9.25-R

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

Part Number: SPZ-37002

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USA Standard Gear Ring and Pinion Sets ZG D70-354 Dana 70 3.54 Gears

Ring and Pinion Gears, 3.54:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 70, Set

Part Number: SPZ-36087

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Estimated Ship Date: Nov 13, 2025 if ordered today

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USA Standard Gear Ring and Pinion Sets ZG F9-370 Ford 9 in. 3.70 Gears

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

Part Number: SPZ-36137

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Estimated Ship Date: Nov 13, 2025 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2238 GM 7.5/7.625 in. 3.73 Gears

Ring and Pinion Gears,USA Standard 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10693

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Estimated Ship Date: Nov 14, 2025 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2215 Ford 8.8 in. 3.27 Gears

Ring and Pinion Gears,USA Standard 8.8" Ford, 3.27 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10670

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Estimated Ship Date: Nov 13, 2025 if ordered today

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USA Standard Gear Ring and Pinion Sets ZG D60-354 Dana 60 3.54 Gears

Ring and Pinion Gears, 3.54:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36073

5.0 out of 5 stars ( 1 )

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USA Standard Gear Ring and Pinion Sets ZG D30SR-373JK Dana 30 Jeep Wrangler JK 3.73 Gears

Differential Ring and Pinion, USA Standard replacement Ring & Pinion gear set for Dana 30 JK reverse rotation in a 3.73 ratio

Part Number: SPZ-36417

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Estimated Ship Date: Nov 14, 2025 if ordered today

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USA Standard Gear Master Overhaul Kits ZK GM8.5

Ring and Pinion Installation Kit, GM 8.5 in., Rear, Kit

Part Number: SPZ-37055

5.0 out of 5 stars ( 1 )

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USA Standard Gear Ring and Pinion Sets ZG GM8.5-456 GM 8.5/8.6 in. 4.56 Gears

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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USA Standard Gear Master Overhaul Kits ZK GM12P

USA Standard Master Overhaul kit for the GM 12P differential

Part Number: SPZ-37042

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