Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

3.73 Posi-Traction Rear Axle Assembly

$4,690.89

SKU: RAA435-2159F-P

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The Zumbrota Drivetrain RAA435-2159F-P is a remanufactured AAM 11.5" axle assembly. It features a 3.73 gear ratio and a Posi Limited Slip Differential. This axle assembly is built to rigorous standards with thorough inspection of all components, including ring and pinions, internal gears, clutches, and carriers. All bearings and seals are replaced during the remanufacturing process.
Show original supplier description
The Zumbrota Drivetrain RAA435-2159F-P is a remanufactured axle assembly designed to provide reliable performance for your Dodge Ram truck. This unit features an 11.5-inch ring gear diameter and a 3.73 gear ratio, offering a balance of power and efficiency for 4WD applications. The Posi-Traction differential ensures optimal grip and control in various driving conditions. Each axle assembly is meticulously remanufactured by Zumbrota Drivetrain's skilled technicians, adhering to rigorous standards to guarantee both reliability and performance. The product is specifically designed as an OE replacement, ensuring a direct fit and seamless integration into your vehicle's existing drivetrain. The 11.5-inch AAM differential is built for durability and longevity. This axle assembly is compatible with the 2008 Dodge Ram 1500 Mega Cab, 2500, and 3500 SRW models equipped with 4WD. It is designed to work with the Chrysler 11.5-inch axle type. The unit comes with a 2-year warranty, providing peace of mind for your investment.

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 NumberRAA435-2159F-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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