Drivetrain› Differentials and Rear-End Components

USA Standard Gear

4.56 31-Spline Ring and Pinion Gear Set

$324.09

SKU: ZG F10.25-456S

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In Stock
Ships by Aug 3
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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The USA Standard Gear ring and pinion gear set is engineered to provide a reliable upgrade for Ford 10.25-inch differentials. This specific set offers a 4.56 gear ratio, which is ideal for applications requiring increased torque for towing or off-road use. It is designed with a 31-spline short pinion, making it suitable for applications up to and including 1992 models.

MIA's Description

The USA Standard Gear ring and pinion gear set is designed for Ford 10.25" differentials. This set features a 4.56 gear ratio and a 31-spline short pinion. It is intended for applications from 1992 and older.

Fitment

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Specifications

BrandUSA Standard Gear
Part NumberZG F10.25-456S
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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