Zumbrota Drivetrain

AAM 9.25" Front Differential Housing

$195.89

SKU: YSPBJ-004HDK1

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

Description

The Yukon Ball Joint Kit is a precision-built component for replacing upper and lower front ball joints on one side of AAM 9.25” front differentials. The kit includes one upper and one lower ball joint along with all associated small parts, such as Grade 8 hardware, castle nuts, c-clips, cotter pins, and zerk fittings. The upper joint features a superior carbon steel bearing design compared to OE, and the lower joint utilizes military-grade acetal bearings known for their anti-friction properties and dimensional stability. Protection against contaminants like grime, oil, and extreme temperatures is provided by a two-stage boot system, including a synthetic Neoprene/CR outer boot and an inner seal/pancake boot. Note that you may experience memory steer during a 300- to 500-mile performance break-in period after installation. The product comes with a lifetime warranty against manufacturing defects.

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

BrandZumbrota Drivetrain
Part NumberYSPBJ-004HDK1
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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