Drivetrain Differentials and Rear-End Components

Motive Gear

1521 F150 DIFFERENTIAL RING & PINION 3.15 RATIO 8.8IN DIA REAR

$434.36

SKU: M01Z F8.8-315L

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

Moderate — 2–4 hours

Description

This Motive Gear 8.80-inch Rear Axle Ring and Pinion Gear Kit (3.15 Gear Ratio) is a quality replacement designed for rear axle placement. It has a gear ratio of 3.15 and is compatible with the Ford Super 8.8 differential case design. The ring gear material is made of premium-grade 8620 steel for strength and long service life. This kit directly replaces the old factory part and is manufactured following OEM guidelines for a precise fit and long-lasting reliability. Installation is easy and requires no drilling.

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

BrandMotive Gear
Part NumberM01Z F8.8-315L

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