Zumbrota Drivetrain

USA Standard 3.73 Ratio Differential Gear Set

$261.89

SKU: ZG D30-373

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

Description

The USA Standard Ring & Pinion replacement gear set is engineered for Dana 30 differentials, featuring a 3.73 gear ratio. This set includes a 7.20-inch ring gear diameter, a 26-spline pinion, and uses 10 ring gear bolts. It is designed for standard rotation Dana Spicer 30 differentials and specifically excludes the use of a crush sleeve. This gear set is a direct replacement for your OE components, providing a confident and reliable solution for your drivetrain needs. USA Standard Gear offers a comprehensive selection of ring and pinion sets for a wide range of applications, ensuring you can find the right fit for your build. This gear set is compatible with numerous vehicle applications, including various Volvo models (240, 242, 245, 265, 142, 144, 164), Jeep models (Commando, CJ5, CJ6, CJ7, Grand Cherokee, Scrambler, Wagoneer), Ford Aerostar, Ford Bronco, American Motors Eagle, and International Scout models. Specific fitment details note compatibility with Dana 30, 3.73 ratio, standard rotation, and without crush sleeve for many of these applications.

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

BrandZumbrota Drivetrain
Part NumberZG D30-373
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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