Zumbrota Drivetrain

Reman Axle Assembly 3.90 Ratio 9.25-Inch

$1,923.89

SKU: RAA435-1438F

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

Description

The Zumbrota Drivetrain Reman Axle Assembly is a meticulously remanufactured unit designed to meet or exceed OEM specifications for Chrysler 9.25-inch differentials. This axle assembly boasts a 3.90 gear ratio and a 9.25-inch ring gear, housed within a 12-bolt hexagon cover. It is specifically configured for vehicles without Posi Traction and notably excludes hubs, brakes, backing plates, and axle shafts, allowing for custom component selection. The remanufacturing process involves rigorous inspection and refurbishment, including straightening of all tubes to OEM standards, testing housings for wear and cracks, and a comprehensive 100% inspection of all internal gears and clutch components. Bearings, seals, crush sleeves, pinion nuts, and shims are systematically replaced to ensure optimal performance and durability. The housings undergo a state-of-the-art hydro blasting and rinsing process to achieve an OEM finish, and precise rolling torque is established for longevity. This assembly is built for 1989-1990 Dodge 1/2 Ton trucks equipped with ABS. Please confirm fitment for your specific vehicle, as it does not include hubs, brakes, backing plates, or axle shafts. A refundable core charge of $400 applies, which is returned upon receipt of your old, salvageable part for recycling or rebuilding.

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 NumberRAA435-1438F
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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