Awhile back I remember something about using the drum spindles for disc by grinding down one of the backing plate bosses I beleive. Anyone got some specific info on that? I have some 67 4 piston's calipers and 68 drum spindles, rotors are junk though.
Wanting a Custom fit in an off the rack world.
I don't have time for a job, I just need the money.
You mill the top boss down then use a 1 inch 7/16-20 bolt. The same type bolt used to hold the flywheel to crank. Not flex plate bolts. I've done the mod. But now you can buy repro disc spindles for $100.
I've done this modification several times. I found the amount to cut off different on all the spindles. I attached the caliper bracket to the lower mount, snug but not tight and then rotated the bracket up until it touched the upper pivot bolt boss and scribed a line. I used a hacksaw to remove the majority of the boss and a Bridgeport mill to machine them flat. The flats on the backside of the steering arm mounts are plumb to the axle centerline and parallel to the surface of the boss. Oh, BTW, this only pertains to 69 and later spindles. You can modify earlier spindles, it's just a little more work.
