Exterior Components› Body Panels and Components

Richmond Gear/Motive Gear

Differential Mini Spool

$53.86

SKU: R01O 78-0931-1

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

Moderate — 2–4 hours

Description

The Motive Gear MS9-31 Differential Mini Spool is a performance upgrade designed for Ford 8 and 9 differential cases with 31 splines. Made of durable steel, this mini spool is ideal for open carriers. It is compatible with a wide range of Ford and Mercury models from 1955 to 1986.

Fitment

Fitment Guaranteed

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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

BrandRichmond Gear/Motive Gear
Part NumberR01O 78-0931-1

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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