Zumbrota Drivetrain

Remanufactured Rear Axle Assembly

$3,205.89

SKU: RAA435-120C

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

Description

Each assembly undergoes thorough inspection for straightness, cracks, and surface wear, ensuring a quality rebuild. All internal components, including the ring and pinions, internal gears, clutches, and carriers, are subjected to comprehensive inspection and testing. To guarantee optimal performance and longevity, all bearings and seals are replaced. The gears are meticulously inspected for ideal tooth contact patterns and set to the correct rolling torque using inch-pound measurements. Proper gear backlash is established to ensure adequate gear lubrication and quiet operation. Furthermore, axle tubes are inspected and straightened to OEM specifications. Zumbrota utilizes an exclusive hydro-blast rinse and sandblasting procedure on both internal and external parts. This is followed by a proprietary shot-enticed deep cleaning process, setting a benchmark for remanufactured axle assemblies. The assembly features a 3.42 gear ratio, an AAM 11.5-inch ring gear, and is designed for single rear wheels with Posi Traction. It specifically excludes Cab Chassis models and does not include hubs, brakes, backing plates, or axle shafts.

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 NumberRAA435-120C
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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