Zumbrota Drivetrain

9.25" Rear Axle Assembly

$2,699.89

SKU: RAA435-121A-P

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

Description

The Zumbrota Drivetrain RAA435-121A-P is a meticulously remanufactured 9.25" rear axle assembly, built to meet high standards of precision and reliability. This specific unit is configured for 2WD vehicles with a 3.21 axle ratio and a Limited Slip Differential (LSD) for enhanced traction. This axle assembly is designed for 2006-2008 Ram 1500 trucks. It explicitly excludes SRT10 and Mega Cab models, as well as those equipped with ESP or featuring square brake flanges. It is crucial to verify these fitment details before purchase. During the remanufacturing process, Zumbrota Drivetrain ensures the integrity and performance of each component. All axle tubes are inspected and straightened to meet OEM specifications. Housings are thoroughly tested for any surface wear or cracks. Furthermore, 100% inspection is performed on all internal parts, including the ring and pinion, internal gears, clutches, and carrier. To guarantee optimal performance and longevity, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new or remanufactured parts. Each housing is cleaned using an advanced hydro blasting and rinsing process, restoring it to an OEM finish. The final assembly process includes establishing the correct rolling torque with precise inch-pound measurements, ensuring proper setup and extended service life for your drivetrain.

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 NumberRAA435-121A-P
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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