Sale

Zumbrota Drivetrain

ZF 9.25" Rear Axle Assembly, 3.55 Ratio, 12-Bolt Electronic Locking Diff

$5,159.98 $4,690.89 Save $469.09

SKU: RAA435-10047B

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

Description

The Zumbrota Drivetrain RAA435-10047B is a remanufactured rear axle assembly, engineered to restore optimal performance and durability to your vehicle's drivetrain. This unit features a robust ZF 9.25-inch ring gear and a precise 3.55 gear ratio, designed for enhanced torque transfer and responsiveness. This assembly is built with a 12-bolt hexagon cover and incorporates an electronic locking differential for superior traction control in various driving conditions. It is specifically designed to fit the 2019-2025 Ram 1500 New Body Style models equipped with 6-lug wheels. Please note that this axle assembly does not include hubs, brakes, backing plates, or axle shafts, and these components may need to be sourced separately. During the remanufacturing process, Zumbrota Drivetrain ensures all components meet stringent quality standards. This includes establishing correct rolling torque using inch-pound measurements for setup precision and longevity. Housings are meticulously cleaned via hydro blasting and rinsing to achieve an OEM finish, and all internal parts, including ring and pinion gears, internal gears, clutches, and carriers, undergo 100% inspection. Bearings, seals, crush sleeves, pinion nuts, and shims are replaced 100%, and all housings are tested for surface wear and cracks, with tubes straightened to OEM specifications.

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 NumberRAA435-10047B
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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