Zumbrota Drivetrain

Reman Complete Axle Assembly 3.73 Ratio 7.25" Ring Gear

$1,951.39

SKU: RAA440-1371E

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

Description

Each assembly undergoes thorough inspection for straightness, cracks, and surface wear, with all internal components, including ring and pinions, gears, clutches, and carriers, being fully inspected and tested. Zumbrota replaces all bearings and seals, and meticulously inspects gears for optimal tooth contact patterns and correct rolling torque using precise inch-pound measurements. Gear backlash is set correctly to ensure proper lubrication and quiet operation, while axle tubes are inspected to meet OEM standards for straightness. The remanufacturing process includes an exclusive hydro-blast rinse, sandblasting, and a proprietary shot-peened deep cleaning procedure. This specific axle assembly features a 3.73 gear ratio and a 7.25-inch ring gear, designed for the GT4 ratio option. It is compatible with 4WD/AWD models of the 2003-2005 Chevrolet Trailblazer and GMC Envoy. Units are shipped in high-density plastic totes to prevent in-transit damage. Key specifications include a fluid capacity of 0.85 and requires non-synthetic 75w-90 fluid type.

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

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandZumbrota Drivetrain
Part NumberRAA440-1371E
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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