USA Standard Gear

4.11 Ratio Ring and Pinion Gear Set

$308.89

SKU: ZG M20-411

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

Description

The USA Standard Gear ZG M20-411 is a precision-engineered ring and pinion gear set specifically designed for the AMC Model 20 differential. This set offers a 4.11 gear ratio, providing an optimal balance for performance and drivability in various applications. Constructed to exceed Original Equipment Manufacturer (OEM) specifications, each USA Standard Gear set is subjected to stringent in-house quality control measures. Key specifications for this ring and pinion set include an 8.875" ring gear diameter, a 28-spline pinion, and compatibility with differentials using 8 ring gear bolts. The 4.11 ratio is ideal for applications seeking improved acceleration while maintaining reasonable cruising RPMs. USA Standard Gear is committed to delivering dependable drivetrain components. Their rigorous testing protocols and dedication to exceeding industry standards make their ring and pinion sets a trusted choice for enthusiasts and professionals alike.

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 M20-411
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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