USA Standard Gear

Differential Installation Kit for GM 12-Bolt Truck

$191.89

SKU: ZBKGM12T

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

Description

The USA Standard Gear ZBKGM12T bearing and installation kit is designed to provide a complete solution for rebuilding or regearing GM 12-bolt truck differentials. This kit utilizes premium Koyo bearings and races, ensuring durability and smooth operation. Included in the ZBKGM12T kit are essential components such as carrier bearings and races, pinion bearings and races, a pinion seal, pinion nut, crush sleeve, and marking compound with an applicator brush. USA Standard Gear meticulously researches each application to guarantee that the kit contains precisely the correct parts needed for the installation of ring and pinion gear sets. This kit is specifically engineered to fit GM 12-bolt truck axles, providing a reliable and comprehensive solution for drivetrain professionals and enthusiasts. The focus on quality components like Koyo bearings and races ensures that the differential is rebuilt to exacting standards.

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

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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

BrandUSA Standard Gear
Part NumberZBKGM12T
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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