Zumbrota Drivetrain

GM 10 Bolt 8.5-Inch Rear Axle Assembly 3.08 Posi Traction

$1,799.89

SKU: RAA435-1215CE-P

In Stock
In Stock
Ships by Sep 1
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Zumbrota Drivetrain RAA435-1215CE-P is a remanufactured rear axle assembly, engineered for GM 10 Bolt 8.5-inch differentials. This unit comes equipped with a 3.08 gear ratio and Posi Traction for enhanced performance. This assembly is meticulously rebuilt, featuring 100% replacement of bearings, seals, crush sleeves, pinion nuts, and shims. All internal components, including the ring and pinion, gears, clutches, and carrier, undergo 100% inspection. Housings are cleaned via hydro blasting and inspected for wear and cracks, with tubes straightened to OEM specifications. Correct rolling torque is established using precise inch-pound measurements for setup and longevity. Designed for specific applications, this rear axle assembly fits 1978-1987 GM 1/2 ton trucks and 1978-1988 GM 1/2 ton Suburbans. It is exclusively for 2WD models and requires 28-spline axles. Please note that this assembly does not include hubs, brakes, backing plates, or axle shafts, which must be sourced separately. Zumbrota Drivetrain prioritizes quality in its remanufacturing process, ensuring that all components meet or exceed OEM standards for reliable operation and extended service life.

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 NumberRAA435-1215CE-P
CategoryDrivetrain

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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

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