Zumbrota Drivetrain

Remanufactured Axle Assembly 3.73 Ratio

$2,899.99

SKU: RAA435-128A

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

Description

The Zumbrota Drivetrain RAA435-128A-P is a remanufactured complete axle assembly specifically designed for the 2006-2008 Dodge Ram 3500 DRW with a 3.73 gear ratio and 2WD configuration. This axle assembly boasts rigorous quality standards and precision engineering. It features a full floating axle type, includes the cover (fluid is not included), and has an 11.5-inch ring gear with a 3.73 ratio. Each unit undergoes a comprehensive inspection process, including checks for axle tube straightness, housing integrity (surface wear and cracks), and full inspection of internal components like gears and carriers. To ensure optimal function and longevity, Zumbrota replaces 100% of bearings, seals, crush sleeves, pinion nuts, and shims. Advanced hydro-blasting processes are used to restore housings to an OEM finish, and precision setup with correct rolling torque is established using inch-pound measurements. This axle assembly is engineered to meet the specific demands of the Dodge Ram 3500 RWD (2006-2008), ensuring a seamless fit and reliable performance for maintenance or restoration projects. The shipping fee includes the return of your core to the manufacturer; a partial refund on shipping is available if you send the core in advance, though this may extend the process duration.

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 NumberRAA435-128A
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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