Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

5.29 Ratio Ring and Pinion Gear Set

$355.89

SKU: ZG F9-529

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear ZG F9-529 is a ring and pinion gear set designed for Ford 9-inch differentials. It features a 9.00-inch ring gear diameter and a 28-spline pinion. This set includes 10 ring gear bolts and offers a 5.29 ratio, suitable for applications requiring enhanced torque transfer, such as running larger tires or improving off-the-line acceleration.

The gear set is backed by a 1-year warranty against manufacturer defects. It is compatible with a wide range of classic Ford, Lincoln, and Mercury models, including the Ford Bronco (1966-1986), Ford F-150 (1975-1987), and Mercury Cougar (1967-1979).
Show original supplier description
The USA Standard Gear ZG F9-529 is a specialized ring and pinion gear set engineered for the robust Ford 9-inch differential. Its construction ensures reliable torque transfer and longevity, making it a solid choice for project vehicles that demand durability and responsiveness. Key specifications include a 9.00-inch ring gear diameter, a 28-spline pinion for a secure fit, and a 5.29 ratio. This ratio is particularly beneficial for users running larger tires or seeking improved acceleration from a standstill. The set comes complete with 10 ring gear bolts to ensure a secure installation. It is built to exceed OEM specifications, offering a higher quality component for demanding applications. This ring and pinion set is compatible with a comprehensive list of classic Ford, Lincoln, and Mercury models. Fitment includes vehicles such as the Ford Bronco (1966-1986), Ford E-series vans (various models from 1975-1988), Ford F-series trucks (various models from 1957-1987), Ford Fairlane (1957-1970), Ford Mustang (1965-1973), Lincoln Continental (1961-1979), and Mercury Cougar (1967-1979), among others. A 1-year warranty against manufacturer defects provides an added layer of security for your investment. Whether you are undertaking a restoration or upgrading your classic Ford's drivetrain, the USA Standard Gear ZG F9-529 offers a reliable solution to enhance performance and ensure your vehicle is ready for the road or trail.

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 F9-529
CategoryDrivetrain

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy