Kelsey-Hayes replacement

Jim are you running this with a 14" 5.5" inch wheel? A buddy of mine has this and has to use 1/8 spacers. A K-H rotor stock is 11" which this is in the kit, my concern is the adapter from the caliper pad holder to the spindle. My other question is do you think these rotors would work on an existing stock K-H system? I have all the factory parts, rotors are shot though.

Where would you find 1/8” 5x4” bolt pattern spacers these days?