Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Remanufactured Complete Axle Assembly

$1,638.89

SKU: RAA435-1931D

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Zumbrota Drivetrain RAA435-1931D is a remanufactured complete axle assembly designed for Ford Ranger and Mazda B4000 vehicles. This assembly is meticulously rebuilt to meet high standards of precision and reliability.

Every axle assembly undergoes thorough inspection for straightness, cracks, and surface wear. Internal components like ring and pinions, gears, clutches, and carriers are rigorously tested, and all bearings and seals are replaced to ensure reliable performance.
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This assembly is meticulously rebuilt to meet the highest standards of precision and reliability, ensuring your vehicle performs at its best. Each RAA435-1931D axle assembly undergoes a comprehensive inspection process. This includes checking for straightness, cracks, and surface wear to guarantee durability. All internal components, such as ring and pinions, gears, clutches, and carriers, are rigorously tested. Furthermore, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced, ensuring optimal performance right out of the box. Key specifications for this axle assembly include a Semi Floating axle type, with the cover included but fluid not included. It is designed for vehicles equipped with 10-inch drum brakes and features a 4.11 gear ratio. The RAA435-1931D is designed to fit a range of specific models, including Ford Ranger from 1999-2004, various 2005 Ford Ranger trims (Edge, FX4, STX, XL, XLT), and Mazda B4000 from 2004-2008. Owners have praised the RAA435-1931D for its seamless installation and robust performance, noting significant improvements in handling and stability, especially when towing. This axle assembly is presented as an enhancement to your vehicle's capability.

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 NumberRAA435-1931D
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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