I picked up the callipers today, just sandblasted the old bolt heads and painted them. I like that the aftermarket callipers come coated now, saves stripping them down, sandblasting and powdercoating.
Working on the front 60 now, retapping the buggered grease zerks for the kingpins. I noticed the 70 has 9/16" wheel studs and the 60 front has 1/2" so I ordered some Chev k20 studs that are 9/16 for the front axle so I have matching lugnuts all the way around.