[ga-stepside]

I didn’t do proper research on this and bought CCP 2 ½” drop spindles from Summit for a 1967 C10 which is what the truck is. But the ball joints did not fit right on the spindles. I called Moog tech support (800-325-8886) to get dimensions on the upper ball joint shafts. The difference in the 67 and 71 is the small end of the taper on a 67 upper (#6024) is .588 and the 71 (#6124) is .551. The big ends are the same .702. So I had a choice to return the spindles to Summit for an exchange or get new ball joints. I decided to use 1967 ball joints since the 71 ones on the truck were bad anyway. I got new rotors and calipers for a 1972 C10 from O’Reilly’s.