I do not have the RE here right now + so can not check myself. None of the online tech sites list a flange to flange dimension for the 12 bolt Impala 65-70 RE. I found a 68 Imp. w a 12 bolt posi and need the F to F dimension. Anyone? :confused:

According to a guy on Chevy Talk its 63" F to F

1968 12 bolt should fit under a 1966.

Big Dave

I have 58 1/4 for both 10 and 12 bolt 1965-1970. Over all width is just a hair over 63" drum to drum . I will check the 64 and older in a minute. Jim

some 65-70 have 1 or 2 upper control are brackets. later usually used the 2 uppers. Jim