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Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Rear Axle Assembly 4.56 Ratio

Name: Rear Axle Assembly 4.56 Ratio
Brand: Zumbrota Drivetrain
SKU: RAA435-2246X1

$2,938.89

SKU: RAA435-2246X1

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Non-Returnable Item

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Overview

The Zumbrota RAA435-2246X1 is a rear axle assembly designed for Ford 10.5 applications.

This performance-grade axle assembly features a 4.56 gear ratio and comes with a differential cover. It is rebuilt to high standards of precision and reliability, with all internal components inspected and tested, and all bearings and seals replaced. The Zumbrota axle assemblies undergo a thorough inspection process, including checks for straightness, cracks, and surface wear.

Show original supplier description

The Zumbrota RAA435-2246X1 is a performance-grade rear axle assembly specifically designed for Ford 10.5 applications. This assembly is rebuilt to Zumbrota's highest quality standards, ensuring precision and reliability. All internal components, including ring and pinions, internal gears, clutches, and carriers, are thoroughly inspected and tested. Additionally, all bearings and seals are replaced during the remanufacturing process. Zumbrota employs a rigorous inspection process for each axle assembly, verifying straightness, checking for cracks, and assessing surface wear. The gears are inspected for optimal tooth contact patterns and set to the correct rolling torque using precise inch-pound measurements to ensure longevity. The remanufacturing process includes an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning. It is compatible with 2005-2007 Ford F250 and F350 Super Duty Single Rear Wheel (SRW) trucks.

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

Brand	Zumbrota Drivetrain
Part Number	RAA435-2246X1
Category	Drivetrain

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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

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