Ford 9-Inch Rear Disc Brake Conversion Guide

“Ford 9-inch” describes an axle family, not one universal brake configuration. Before choosing a rear disc brake conversion kit, the axle flange, offset, bolt pattern, bearing configuration and parking-brake requirements must be identified.

Why Ford 9-Inch Kits Differ

Ford used multiple housing ends and bearing arrangements, and many vehicles now have swapped or aftermarket housings. Vehicle year alone may not identify the axle currently installed.

Measurements to Confirm

• Housing-end or axle-flange pattern
• Old-style or new-style large-bearing configuration
• Small- or large-bearing setup
• Axle offset
• Wheel bolt pattern
• Wheel and caliper clearance
• Parking-brake cable arrangement

What a Conversion Kit May Include

Depending on the part number, a kit may include rear calipers with parking brakes, rotors, brackets, hoses, hard lines, shims, spacers, pads and hardware. Confirm the exact product contents.

Wheel Clearance

Some kits can work with smaller wheels, but diameter alone is not a guarantee. Check spoke and barrel clearance using the actual wheel.

Shop Ford 9-Inch Options

Browse Ford drum-to-disc conversion kits, including axle-specific Ford 8-inch and 9-inch applications. The A110-2R-DS large-bearing kit is one example; it does not fit every Ford 9-inch axle.

Call (716) 775-6700 with axle measurements before ordering.