I dont have either items in front of me, but would like to know if the wheel cylinders used in car 9 inch diff are inter changeable with those of F100 and F150 trucks. Reason I ask is I am running F150 rear brakes on my hot rod pickup and need some wheel cylinders which I currently dont have any to look at, but would prefer a 7/8" bore size in the cylinder rather that what I am told is a 15/16" bore in the F series vehicles.