Zumbrota Drivetrain

9-Inch Ford 31 Spline 4-Pinion Open Differential Spider Gear Set

$252.76

SKU: ZIKF9-S-31-4

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard Gear ZIKF9-S-31-4 is a standard spider gear set specifically engineered for Ford 9-inch differentials. This kit is designed for 31 spline axles and features a robust 4-pinion design, making it suitable for open differential applications. This comprehensive spider gear kit includes all necessary internal components for replacement or upgrade. The package contains two side gears, four pinion gears, a cross pin shaft, roll pins, and spider gear thrust washers, ensuring a complete solution for differential repair or enhancement.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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

BrandZumbrota Drivetrain
Part NumberZIKF9-S-31-4
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

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

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy