Drivetrain Differentials and Rear-End Components

USA Standard (Yukon)

7.5 7.625 GM 3.73 Rear Ring Pinion Install Kit 2.25 OD Axle Bearings 7.5 7.625 GM 3.73 REA

$630.89

SKU: U018 ZGK2238

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

USA Standard ZGK2238 is a 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion Gear Set and Master Install Kit Package, with 2.25" OD Axle Bearing & Seals. It features a 3.73 Ring & Pinion Gear Set for applications with a 10 Bolt Rear Cover and 10 Bolt Ring Gear. This Quick Kit includes a USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts required for installation. It fits carrier cases designed for 3.23 and up gear ratio and has a 27 Spline Pinion Shaft.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandUSA Standard (Yukon)
Part NumberU018 ZGK2238

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy