Drivetrain› Differentials and Rear-End Components

USA Standard (Yukon)

11.25 Dana 80 Thin 3.73 Rear Ring Pinion Install Kit 35 Spl Posi 4.375 D80 11.25 DANA 3.73

$2,381.89

SKU: U018 ZGK2180

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

Advanced — 4+ hours

Description

This kit includes a 3.73 Thin Ring & Pinion Gear Set, a Master Install kit with Koyo bearings and small parts, and a 35 Spline Yukon Dura Grip Clutch Style Limited Slip (LSD). It is designed for applications with a 10-bolt rear cover and 12-bolt ring gear, fitting carrier cases designed for 4.10 and up gear ratios. The Ring Gear Diameter is 11.25". All Positraction units are fully rebuildable.

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 ZGK2180

Videos

Dana 80 gear swap

Dana 80 gear swap
How to set ring & pinion backlash

How to set ring & pinion backlash
Proper Break-In Procedure for New Ring & Pinion Gears

Proper Break-In Procedure for New Ring & Pinion Gears

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