The brackets fits the small bearing 2.81" OD Ford small bearing axles. 4.5 bolt circle has 1/2" stud holes and 4.75" bolt circle has 7/16" stud holes.
Small Bearing 9" Ford Econo Bolt On Rear Disc Brake Kit with Em. Brake Calipers
For Ford 8" or 9" Small Bearing Rear Disc Brake Conversion with Parking Brakes
Complete Disc Brake Conversion Kit + Parking Brakes for Ford 8" 9" Small Bearing
Complete Rear-End Bolt-On Disc Brake Kit for Ford 8 Inch or 9 Inch Small Bearing
Disc Brake Conversion Kit Small Bearing 8"/9" Rear Mustang 65-73 w/ Drilled/S...
