Sale

Zumbrota Drivetrain

4.88 Ring & Pinion Gear Set for Dana 30

$305.90 $285.89 Save $20.01

SKU: ZG D30R-488R

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

Description

The USA Standard Ring & Pinion gear set is engineered as a direct replacement for Dana 30 reverse rotation differentials that do not use a crush sleeve. This set is designed to provide a 4.88 gear ratio, enhancing your vehicle's performance for larger tires or towing applications. Key specifications include a 7.20" ring gear diameter, a 26-spline pinion, and a 10-bolt ring gear pattern, ensuring compatibility with specific Dana 30 axle configurations. The USA Standard Gear brand signifies a commitment to quality and durability in drivetrain components. This gear set is specifically designed for reverse rotation Dana Spicer 30 axles. It is crucial to verify that your vehicle's differential is a reverse rotation Dana 30 and does not utilize a crush sleeve before installation. Professional installation is recommended to ensure proper setup and performance of the gear ratio change.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandZumbrota Drivetrain
Part NumberZG D30R-488R
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy