USA Standard Gear

Differential Cover Gasket Kit

$230.89

SKU: ZA K630231

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

Description

The USA Standard Gear ZA K630231 is a rear axle kit engineered to be a direct replacement or upgrade for Ford 8.8-inch differentials. This kit features a 31-spline, right-hand axle shaft with a length of 27-13/16 inches, designed for vehicles with a 5-lug wheel bolt pattern. The kit is comprehensive, including all necessary components for installation: a wheel bearing, seal, differential cover gasket, studs, and lug nuts. This ensures that you have everything needed to get your vehicle's drivetrain back in working order quickly. The application summary indicates this axle kit is compatible with specific Ford and Mercury models equipped with the 8.8-inch rear axle. Vehicles include the 1995-2001 Ford Explorer, 1997-2001 Mercury Mountaineer, 2001-2003 Ford Explorer Sport, and the 2001-2005 Ford Explorer Sport Trac. These applications generally require the axle to have a 10-bolt cover and are specifically for the rear right side. USA Standard Gear replacement axles are manufactured to meet or exceed original equipment (OE) quality standards. The advanced heat treatment not only enhances strength but also provides for years of dependable service.

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

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Specifications

BrandUSA Standard Gear
Part NumberZA K630231
CategoryDrivetrain

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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.

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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.

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