Drivetrain› Differentials and Rear-End Components
Motive Gear
~(19.4 lbs. 15X11X5)~ RP FORD 8.8 3.89 EXL
SKU: M01Z F88389
Moderate — 2–4 hours
Description
Crafted from sturdy 8620 steel, the kit's components are built to withstand challenging off-road conditions. It includes a 1-year/50,000-mile warranty.
Fitment
Fitment Guaranteed
Don’t gamble
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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 | Motive Gear |
| Part Number | M01Z F88389 |
Videos
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How To Use a Pinion Depth Gauge
How to set ring & pinion backlash
Differential Ring and Pinion Gear Setup
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.
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