Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Reman Axle Assembly Dana 80 3.73 Posi Traction

$4,060.89

SKU: RAA435-2126AE-P

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

Advanced — 4+ hours

Overview

The Zumbrota Drivetrain Reman Axle Assy is a rebuilt Dana 80 differential assembly featuring a 3.73 gear ratio and Posi Traction. It has a 11.25-inch ring gear diameter and is designed for dual rear wheels with a U-joint style yoke.

The assembly undergoes a rigorous remanufacturing process. This includes 100% replacement of bearings, seals, crush sleeves, pinion nuts, and shims. All housings are cleaned using a state-of-the-art hydro blasting and rinsing process, and all internal components like ring & pinions, gears, clutches, and carriers are inspected. Housings are tested for wear and cracks, and tubes are straightened to OEM specifications. Correct rolling torque is established using inch-pound measurements for precision setup and longevity.
Show original supplier description
The Zumbrota Drivetrain RAA435-2126AE-P is a remanufactured Dana 80 axle assembly, engineered for precision and reliability. This unit features a 3.73 gear ratio and Posi Traction, with an 11.25-inch ring gear diameter, designed specifically for dual rear wheel applications and equipped with a U-joint style yoke. The tag numbers for this assembly include 606226-1, 606310-1, 606611-3, 606614-4, and 606781-1. Every axle assembly is thoroughly inspected for straightness, cracks, and surface wear. Critical internal components such as ring and pinions, gears, clutches, and carriers undergo 100% inspection. To guarantee performance and longevity, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The process includes straightening axle tubes to OEM specifications and establishing correct rolling torque with inch-pound measurements for precise setup. Furthermore, the housing undergoes a comprehensive cleaning process utilizing state-of-the-art hydro blasting and rinsing, restoring it to an OEM finish. This meticulous approach sets the standard for remanufactured axle assemblies, ensuring durability and quiet operation through proper gear backlash settings. It is important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts. Please confirm fitment for your specific vehicle.

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 NumberRAA435-2126AE-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