Drivetrain› Differentials and Rear-End Components

Yukon Gear & Axle

USA Standard Ring & Pinion Gear Set For GM 11.5in in a 4.88 Ratio

$579.89

SKU: Y001 ZG GM11.5-488

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: ZG GM11.5-488

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.

MIA's Description

The Yukon Gear & Axle ZG GM11.5-488 is a high-performance USA Standard ring and pinion gear set designed for GM and Chrysler 11.5-inch rear differentials. This precision-engineered gear set delivers a 4.88:1 ratio, providing improved acceleration and torque multiplication for trucks and SUVs used in towing, off-roading, or running larger tire sizes.

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

BrandYukon Gear & Axle
Part NumberY001 ZG GM11.5-488

Buy with Confidence

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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