For Those Doing Disk Brakes. 60-66

[joe231]

Originally Posted by 63sbssbbw

Trouble in paradise guys
The 63 gmc xm dropped out easy,but when I went to test fit the 75 xm to see which holes I needed to modify it only went in after using 2" ratchet straps(1 ahead and 1 behind) to suck the framerails together and still needed a BFH to get it to go in
Did a raft of measurements after the body was removed and came to the conclusion that it's not tweaked,bent or twisted.
So what gives????
I'm going to do some comparing today to see where the differences are.
This has me scratching my head after every thread I've read on this subject stated that
it was a pretty easy swap.
any ideas??
Thanks,Trent

That is "normal"
when we took our cross member out to work on the frame the the rails sprung out. I would not worry about it and just keep keeping on.
the tolerances back then were quite large, so it seems every frame is different....