USA Standard Gear Ring & Pinion Gears, Axles, Driveshafts & More

USA Standard Gear uses precision machining and vigorous testing methods to produce a large assortment of world-class gearing and axle products, ranging from axle shafts...

USA Standard Gear uses precision machining and vigorous testing methods to produce a large assortment of world-class gearing and axle products, ranging from axle shafts to lockers. Summit Racing is your go-to source for USA Standard Gear parts. We carry USA Standard Spartan lockers, ring and pinion sets, axle shafts, replacement cross pins, front axle stubs, and more. Get the traction you need from the parts you want. Order your USA Standard Gear parts from Summit Racing today!

Individual Parts

Part Groups

Results 1 - 25 of 2000 +

USA Standard Gear Axle Shafts ZA G8.2BOP-L

Axle Shaft, 28-spline, 29.875 in. Length, Rear, GM 8.2 in., BOP Axle, Pontiac, Each

Part Number: SPZ-35060

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Master Overhaul Kits ZK GM8.6

Ring and Pinion Installation Kit, GM 8.6 in., Rear, Kit

Part Number: SPZ-37059

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Spartan Lockers Dana 30 SL D30-27

Spartan Differential Locker, Dana 30, 27-spline Axle, Jeep, Ford, International, Each

Part Number: SPZ-17000

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Transfer Case Bearing Kits ZTBK300A

Bearing Kit, Transfer Case, Dana 300, Jeep, Kit

Part Number: SPZ-75160

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Transfer Case Bearing Kits ZTBK205GDM

Transfer Case Rebuild Kit, New Process 205, GM/Dodge Direct Mount, Kit

Part Number: SPZ-78653

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Sets ZG GM14T-373 GM 10.5 in. (14-bolt) 3.73 Gears

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 10.5 in. (14-bolt), Rear, Chevrolet, GMC, Set

Part Number: SPZ-36182

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Transfer Case Bearing Kits ZTBK205GDM4

Transfer Case Rebuild Kit, Bearing Kit, New Process 205, 32 Spline Input Shaft, Chevrolet, GMC, Kit

Part Number: SPZ-79317

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Sets ZG F9-325 Ford 9 in. 3.25 Gears

Ring and Pinion Gears, 3.25:1 Ratio, 28-spline, Standard Rotation, Ford 9 in., Ford, Lincoln, Mercury, Rear, Set

Part Number: SPZ-36134

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Master Overhaul Kits ZK D80-B

USA Standard Master Overhaul kit Dana 80, Rear, Kit

Part Number: SPZ-37078

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Manual Transmission Bearing Kits ZMBK118WS

Manual Transmission Rebuild Kit, Manual Transmission Bearing Kit, Synchronizer Rings, Bricklin, Chevrolet, Iso, Pontiac, Kit

Part Number: SPZ-77081

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Sets ZG GM8.5-373 GM 8.5/8.6 in. 3.73 Gears

Ring and Pinion Gear, 3.73:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36214

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Sets ZG C8.42-355-C Chrysler 8.75 in. 742 case 3.55 Gears

Gear, Ring and Pinion, 3.55:1, Chrysler, 8.75 in. 742, Set

Part Number: SPZ-36300

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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

USA Standard Master Overhaul kit Chrysler, Dodge, 9.25 in., Rear, Kit

Part Number: SPZ-37079

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2225 GM 8.875 in. (12-bolt) truck 3.08 Gears

Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.08 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: SPZ-10680

Not Yet Reviewed

Estimated Ship Date: Aug 21, 2025 if ordered today

...Loading

Estimated Ship Date: Aug 21, 2025 if ordered today

USA Standard Gear Master Overhaul Kits for 2011-2019 1500 - ZK C9.25ZF

USA Standard Master Overhaul kit Chrysler, 9.25 in. ZF, Kit

Part Number: SPZ-37116

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Transfer Case Input Shafts ZTNP19019

Transfer Case Components, Input Shaft, New Process 241/243/246, Chevrolet, GMC, Each

Part Number: SPZ-77873

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Spider Gear Sets for 2011-2018 1500, 2010 RAM 1500 - ZIKC9.25B-S-31B

Differential Carrier Rebuild Kits and Spider Gears, Chrysler 9.25 in. ZF, Side Gears, 31-spline, Rear Axle Location, Dodge, Ram, Kit

Part Number: SPZ-39034

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Manual Transmission Throwout Bearing Retainers ZMG56-6C

Manual Transmission Bearing Retainer, Manual Transmission Bearing Retainer

Part Number: SPZ-ZMG56-6C

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2002

Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 30

Part Number: SPZ-10713

Not Yet Reviewed

Estimated Ship Date: Aug 21, 2025 if ordered today

...Loading

Estimated Ship Date: Aug 21, 2025 if ordered today

USA Standard Gear Master Overhaul Kits ZK GM8.2

Ring and Pinion Installation Kit, GM 8.2 in., Rear, Kit

Part Number: SPZ-37051

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Ring and Pinion Sets ZG D44-456T Dana 44 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36045

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

USA Standard Gear Manual Transmission Input Shafts for 1998-2002 CAMARO, FIREBIRD - ZMT56-16

Manual Transmission Input Shaft, Steel, 26-spline Input, 31-tooth Input Shaft, MM6, Chevrolet, Pontiac, Each

Part Number: SPZ-74230

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Page 1 of 80
Next