Sale

USA Standard Gear

Ring and Pinion Gear Set 4.56:1 Ratio, 8.875" Ring Gear, 28 Spline

$315.53 $294.89 Save $20.64

SKU: ZG M20-456

In Stock
In Stock
Ships by Sep 1
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard ZG M20-456 is a ring and pinion gear set engineered for the AMC Model 20 axle, offering a 4.56:1 gear ratio. Constructed to provide confidence in your installation, USA Standard Gear provides a full line of ring and pinion sets for various common and hard-to-find applications. This set is designed with an 8.875-inch ring gear diameter and a 28-spline pinion, utilizing 8 ring gear bolts. USA Standard Gear offers this set as a lower-cost alternative without compromising quality. It is important to note that USA Standard gears are not recommended for quiet-running vehicles. This gear set is compatible with 1972-1986 Jeep CJ models, but it will not fit models equipped with a Dana 44 axle.

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 M20-456
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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