Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Dana 70 Remanufactured Axle Assembly 3.73 Posi-Traction

$3,809.08

SKU: RAA435-116B-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 RAA435-116B-P is a remanufactured axle assembly designed for Dana 70 applications. It features a 3.73 gear ratio and Posi-Traction limited-slip differential for improved traction. This assembly is for single rear wheels (SRW) and includes a 10.5-inch ring gear.

This complete axle assembly undergoes a rigorous remanufacturing process. It includes inspection of all tubes for straightness and cracks, and all housings are cleaned using a hydro blasting process to restore OEM finish. Internal components like ring and pinion gears, clutches, and carriers are inspected, with 100% replacement of bearings, seals, pinion nuts, and shims. A precise setup with correct rolling torque is established for longevity.
Show original supplier description
The Zumbrota Drivetrain RAA435-116B-P is a remanufactured axle assembly built for the Dana 70 axle, featuring a 3.73 gear ratio and Posi-Traction limited-slip differential. This assembly is designed for Single Rear Wheel (SRW) configurations and incorporates a 10.5-inch ring gear, ensuring robust performance. This axle assembly is meticulously remanufactured to high standards. Zumbrota Drivetrain inspects all tubes to ensure they are straightened to OEM specifications and tests housings for surface wear and cracks. A comprehensive 100% inspection of all internal parts, including Ring & Pinion gears, Internal Gears, Clutches, and Carriers, is performed. To guarantee longevity and optimal performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The housings are cleaned using a state-of-the-art hydro blasting and rinsing process to achieve an OEM finish, and correct rolling torque is established through precise inch-pound measurements. This remanufactured axle assembly does not include hubs, brakes, backing plates, or axle shafts, which must be sourced separately. It is specifically designed for the 2005-2007 Ford E350 Super Duty models.

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 NumberRAA435-116B-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