1977 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 GM14T-A

USA Standard Master Overhaul kit for the '88 and older GM 10.5" 14T differential

Part Number: SPZ-37044

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Estimated Ship Date: Oct 13, 2025 if ordered today

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USA Standard Gear Bearing Kits ZBKC9.25-R-A

9.25 CHY '00 &DOWN BEARING & SEAL KIT, KOYO BRGS

Part Number: SPZ-58026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 13, 2025 if ordered today

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USA Standard Gear Bearing Kits ZBKD60-F

D60 FRONT BEARING & SEAL KIT, KOYO BRGS

Part Number: SPZ-58041

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USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2234

Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 4.11 Ratio Rear Ring & Pinion Gea

Part Number: SPZ-10689

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USA Standard Gear Spartan Locker Replacement Crosspins SL XP-F8.8

Crosspin, Replacement, Steel, Spartan, Ford 8.8 in., Each

Part Number: SPZ-17020

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USA Standard Gear Spartan Locker Replacement Crosspins SL XP-GM12

Crosspin, Replacement, Steel, Spartan, Rear, GM 8.875 in., Each

Part Number: SPZ-17023

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 13, 2025 if ordered today

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2191 Chrysler 8.25 in. 4.88 Gears

Ring and Pinion Gears,USA Standard 8.25" CHRYSLER, 4.88 Ratio Rear Ring & Pinion GearInstall Kit 1.62" ID Axle Bearings & Seals

Part Number: SPZ-10904

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USA Standard Gear Axle Shafts, Direct Fit ZA K630128

Axle 12T GM REAR, '71-'81, 2WD, 12 BOLT TRUCK, 5 LUG, 31-7/16", 30spl, 1559 BRG, 1 SIDE

Part Number: SPZ-11944

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USA Standard Gear Spider Gear Sets ZIKGM14T-S-30

USA Standard Gear standard spider gear set for GM 10.5" 14 bolt truck

Part Number: SPZ-39022

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2188 Chrysler 8.25 in. 3.90 Gears

Ring and Pinion Gears,USA Standard 8.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit 1.62" ID Axle Bearings & Seals

Part Number: SPZ-10901

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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2190 Chrysler 8.25 in. 4.56 Gears

Ring and Pinion Gears,USA Standard 8.25" CHRYSLER, 4.56 Ratio Rear Ring & Pinion GearInstall Kit 1.62" ID Axle Bearings & Seals

Part Number: SPZ-10903

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USA Standard Gear Axle Shafts, Direct Fit ZA K630114

Axle 8.5 GM REAR'80-'88 CAPRICE& IMPALA, 30-7/16", 3.055 PILOT, 28spl, 5 x 5" BP, 1563 BRG, 1 SIDE

Part Number: SPZ-11930

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USA Standard Gear Axle Shafts, Direct Fit ZA K630140

Axle 8.2" & 8.5" GM REAR, '65-'79 PASSSHAFT, 29-1/2", 2.780" SMALL HUB, 28spl, 1 SIDE

Part Number: SPZ-11950

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USA Standard Gear - Axle Shafts, Direct Fit for 1976-1983 CJ5, 1976-1981 CJ7 - ZA K630317

Axle AMC MODEL 20 REAR, '76-'83 CJ5,& '76-'81 CJ7, LEFT HAND, 26-1/4", 29spl, 2 PC DESIGN, SHORT

Part Number: SPZ-12114

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USA Standard Gear Ring and Pinion Sets ZG GM7.5-308 GM 7.5/7.6 in. 3.08 Gears

Ring and Pinion Gears, GM 7.5/7.6 in., 3.08:1 Ratio, 27-spline, Standard Rotation, GM 7.5/7.6 in., Buick, Chevy, GMC, Hummer, Isuzu, Pontiac, Set

Part Number: SPZ-36193

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USA Standard Gear Ring and Pinion Gears ZG GM7.5-373T

USA Standard Ring & Pinion "thick" gear set for GM 7.5" in a 3.73 ratio

Part Number: SPZ-36198

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USA Standard Gear Ring and Pinion Sets ZG GM12T-373 GM 8.875 in. (12-bolt) truck 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, GM 8.875 in. Truck, Set

Part Number: SPZ-36175

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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: Oct 13, 2025 if ordered today

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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

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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: Oct 13, 2025 if ordered today

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Need It Sooner? We recommend these similar substitute parts:

Powertrax Lock-Right Lockers Dana 35 2311-LR

3 out of 5 stars ( 2 )

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USA Standard Gear Differential Carrier Replacement Parts SL SPRING-SM

SPRING AND PIN KIT

Part Number: SPZ-17011

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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

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USA Standard Gear Spartan Lockers GM 8.5 Inch SL GM8.5-30

Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

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USA Standard Gear Spartan Lockers Ford 8/9 Inch SL F9-28-31

Differential Carrier, Spartan Locker, Steel, 28/31-spline, Open Case, Rear, Ford 8/9 in., Each

Part Number: SPZ-17042

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Oct 13, 2025 if ordered today

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USA Standard Gear Ring and Pinion Sets ZG D60-373 Dana 60 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: SPZ-36074

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