Drivetrain› Differentials and Rear-End Components
Yukon Gear & Axle
Yukon Chrysler 8.75in Diff 489 Case Dropout Assembly - 3.55 Ratio 30spl w/ Sure-Grip (w/o Yoke)
SKU: Y001 YDAC8.89-355P/L
Moderate — 2–4 hours
Description
Part #: YDAC8.89-355P/L
Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add fluid, and roll. This unit features a nodular iron case which improves rigidity and power handling, reducing deflection for consistent gear contact and a long service life. This assembly is upgraded with a Sure-Grip/Powr-Lok limited slip differential, a four-spider-gear design that improves torque bias and traction for maximum performance.
Features:
- Fits Chrysler 8.75" differential, 489 case
- Complete, fully assembled dropout
- 3.55 gear ratio
- 30 spline
- Upgraded with Sure-Grip/Powr-Lok clutch-type limited slip differential
- Does not include yoke
Yukon dropout assemblies are built by expert Yukon techs, come fully shimmed, backlashed to spec, and ready to install. This unit is upgraded with a Sure Grip clutch-type limited slip differential for maximum performance and reliability.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
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
| Brand | Yukon Gear & Axle |
| Part Number | Y001 YDAC8.89-355P/L |
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