Sale

USA Standard Gear

Ring and Pinion Gear Set, 5.13 Ratio

$401.13 $367.99 Save $33.14

SKU: ZG D80-513

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

Description

The USA Standard Gear ZG D80-513 is a replacement ring and pinion gear set specifically designed for the Dana 80 axle, offering a 5.13 gear ratio. This set boasts an 11.25-inch ring gear diameter, a 37-spline pinion, and is compatible with 12 ring gear bolts. USA Standard Gear emphasizes that their ring and pinion sets are crafted to exceed original equipment manufacturer specifications. The compatible differentials for this gear set include the Dana 80 with 35 or 37 splines. Additionally, it is suitable for Dana 80 axles in 1998 and newer Ford vehicles with 35-spline configurations, as well as those from 1992 to 2002 that are also 35-spline and equipped with the Dana 80 axle. The product is also listed as fitting '98 & newer Ford Dana 80 axles, specifically noting compatibility with a "WD" designation from 1992-2002.

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

BrandUSA Standard Gear
Part NumberZG D80-513
CategoryDrivetrain

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

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

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