Zumbrota Drivetrain

8.8-Inch 3.55 Posi Rear Axle Ring and Pinion Gear Kit

$1,360.89

SKU: ZGK2038

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

Description

The USA Standard Gear 8.8-Inch Posi Rear Axle Ring and Pinion Gear Kit, with part number ZGK2038, is engineered to fortify your rear axle's foundation, elevating its resilience and longevity. By substituting original gears with these high-caliber components, you reinforce the backbone of your drivetrain. Experience a tangible surge in off-the-line prowess with the synergistic combination of a posi-traction unit and a 3.55 gear ratio. This carefully selected ratio is expertly calibrated to strike an ideal equilibrium for extended highway journeys, allowing your engine to operate within a more fuel-efficient RPM range. The integrated posi-traction unit plays a pivotal role in ensuring a more uniform and reliable delivery of power to both rear wheels, actively minimizing unwanted wheel spin during aggressive acceleration or on slippery surfaces. This kit includes a comprehensive installation kit, with installation estimated to take approximately one day. It is backed by a one-year warranty. This gear kit is specifically designed to fit the 2005-2010 Mustang GT and GT500 models. However, one customer reported that this item does not fit a 2014 Mustang GT, citing that the wheel studs did not fit and the product was too thick for installation.

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 NumberZGK2038
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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