USA Standard Gear

8.8" Ring and Pinion Gear Set 3.27 Ratio

$299.89

SKU: ZG F8.8-327

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

Description

The USA Standard Gear ZG F8.8-327 is a direct-fit ring and pinion gear set engineered to exceed OEM specifications, designed for Ford 8.8" axles with a standard rotation. This set features a 3.27 gear ratio, an 8.80" ring gear diameter, a 30-spline pinion, and 10 ring gear bolts. Each set is precision-machined from CNC-machined triple alloy steel and undergoes rigorous in-house quality evaluation to ensure dimensional accuracy, material integrity, and proper fitment. This kit is specifically designed to fit 1986 to 1993 Ford Mustang GT models. While it is a direct-fit replacement, rebuilding a differential is a complex process, and professional installation is strongly recommended. Purchasing a USA Standard installation or master overhaul kit is also highly recommended to facilitate installation. The USA Standard Gear ZG F8.8-327 comes with a 1-year limited warranty against manufacturing defects, though exclusions will apply. The kit includes one ring gear and one pinion gear.

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

BrandUSA Standard Gear
Part NumberZG F8.8-327
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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