Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Remanufactured Rear Differential 3.55 Ratio 12-Bolt

$2,564.89

SKU: RAA435-2156A-P

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 RAA435-2156A-P is a remanufactured rear differential assembly designed for Chrysler 9.25-inch axles.

This assembly features a Posi Limited Slip Differential with a 3.55 gear ratio and a 12-bolt hexagon cover. Zumbrota Drivetrain rebuilds these units to high standards, inspecting all components for wear and damage, and replacing all bearings and seals. The process includes ensuring correct gear backlash for proper lubrication and quiet operation, as well as inspecting axle tubes for straightness.
Show original supplier description
The Zumbrota Drivetrain RAA435-2156A-P is a remanufactured axle assembly specifically engineered for Chrysler 9.25-inch rear differentials, featuring a Posi Limited Slip Differential and a 3.55 gear ratio. This unit is designed for 2003 Dodge Van 1500 models. Each Zumbrota axle assembly undergoes a rigorous remanufacturing process. This includes a 100% inspection of all internal parts, such as ring and pinions, internal gears, clutches, and carriers. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced as standard. The housings are thoroughly cleaned using a state-of-the-art hydro blasting and rinsing process to restore them to an OEM finish, while axle tubes are inspected and straightened to OEM specifications. Gears are set for optimal tooth contact patterns and correct rolling torque, ensuring precision setup and longevity. This specific assembly is for the Chrysler 9.25-inch ring gear with a 12-bolt hexagon cover and includes the differential cover. It does not include hubs, brakes, backing plates, or axle shafts. It is a semi-floating axle type and does not come with fluid.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandZumbrota Drivetrain
Part NumberRAA435-2156A-P
CategoryDrivetrain

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy