Zumbrota Drivetrain

10.25" Rear Axle Assembly 3.73 Posi Traction Disc Brakes

$1,799.89

SKU: RAA435-1982D-P

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Zumbrota Drivetrain RAA435-1982D-P is a complete, remanufactured axle assembly engineered for 1997-1999 Ford F-250 and F-350 trucks. This unit is built with a 3.73 gear ratio and a 10.25-inch Ford ring gear, featuring Posi Traction for enhanced grip. It is designed for vehicles with a GVW under 8500 lbs and uses a semi-float C-clip axle configuration, incorporating disc brakes. During the remanufacturing process, all tubes are inspected and straightened to OEM specifications, and housings undergo rigorous testing for wear and cracks. Internal components, including the ring and pinion, gears, clutches, and carriers, are subjected to 100% inspection. Critical wear items such as bearings, seals, crush sleeves, pinion nuts, and shims are all replaced with new parts. The housings are cleaned using a state-of-the-art hydro blasting and rinsing process to restore them to an OEM finish, and precise rolling torque is established for optimal setup and longevity. This axle assembly does not include hubs, brakes, backing plates, or axle shafts. It is built to order and requires a refundable core charge of $1,000, which is returned upon receipt of your old, salvageable part.

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 NumberRAA435-1982D-P
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

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.

View Full Shipping Policy