Ford Old Style Rear Disc Conversion Kit w/Cross-Drilled and Slotted Rotors w/o E-Brake Cable Brackets Inline Tube’s Rear Disc Brake Conversion Kits have every brand-new factory-style component to convert your rear axle to disc brakes. Fits Ford small bearing 8” or 9” axle. Check secondary photos to ensure that this is correct for your axle.