Sale

Zumbrota Drivetrain

Remanufactured Axle Assembly 2.73 Ratio G80 Posi

$1,099.89 $1,067.89 Save $32.00

SKU: RAA435-2111E

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

Description

The Zumbrota Drivetrain RAA435-2111E is a remanufactured axle assembly designed to restore reliable drivetrain performance for select GM vehicles. This unit is built with a 2.73 gear ratio and features a 7.6-inch ring gear, incorporating the G80 Posi Traction differential for enhanced grip. This specific axle assembly is intended for 1985 through 1989 model year GMC Astro and Safari Vans. It is constructed with fiberglass leaf springs and does not have ABS sensors on the rear housing. The ratio option designation is GU2. All axle tubes are inspected and straightened to OEM specifications, while housings are rigorously tested for surface wear and cracks. Internal components, including ring and pinion gears, internal gears, clutches, and carriers, undergo a 100% inspection. New bearings, seals, crush sleeves, pinion nuts, and shims are installed in every unit. The housings are cleaned using a hydro blasting process to achieve an OEM finish, and precise rolling torque is established for optimal setup and extended service life. It is important to note that this axle assembly does not include hubs, brakes, backing plates, or axle shafts. These components would need to be sourced separately.

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 NumberRAA435-2111E
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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