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Ford 9 Inch


The Ford 9 Inch is one of the most widely used differentials in domestic autos, and is a common choice for classic restorations and rebuilds as well as many older 4x4 vehicles. The 9 inch rear end was put into production by Ford from the late 1950’s up until the early 1980’s in cars and trucks and was the standard differential for that time. Some of the more popular models to run the 9 Inch are the Ford Bronco, Ford Mustang and the Ford F-150.

Ford 9 Inch differential is most easily identified by its rounded housing (compared to the more oblong Ford 8”), with later models after 1966 featuring a hump in the center. Like all Ford differentials the 9 Inch has a removable 3rd member that drops out the front of the housing and also has a removable pinion support, allowing for easier access to make alterations to pinion depth.

Learn more about the Ford 9 Inch

RANDYS Worldwide carries a wide selection of parts for the Ford 9” rear end including gears, axles, dropouts, lockers, positraction, housing, yokes and more. Take a look at our featured products below or click on the Diff Wizard button for all other small parts related to the Ford 9.

Ford 9 Inch Bronco Ring & Pinion Gear Sets
Gear sets in ratios from 3.00 to 6.50 from USA Standard and Yukon Gear & Axle, all of which come backed by a 1 year manufacturer warranty.

Rear Axles
Axles from replacement to performance are available from USA Standard (1 Year Warranty) and Yukon Gear & Axle (Industry Leading 10 Year Warranty).

Lockers and Positraction Units
RANDYS line of traction devices for the Ford 9 Inch includes the affordable and easy to install Spartan Locker®, high performance Grizzly Locker®, Trac Loc® positraction and Spools from Yukon and USA Standard.

Carrier Cases
Carrier Cases from Yukon in both open differential and positraction applications.

Spider Gears
Replacement Spider Gears from Yukon to fit both open differential and positraction applications.

RANDYS carries a selection of high strength dropouts from Yukon Gear & Axle made from your choice of nodular iron or aluminum, and with or without load bolts.

Pinion Supports
Pinion supports in both nodular iron and aluminum for the Ford 9” from Yukon Gear and Axle featuring large inner pinion bearings.

A wide variety of yokes for the Ford 9” from Yukon including 1310, 1330 and 1350 u-joint sizes