Overall width drum-to-drum is 60 7/8" and the perches are 45 1/2".
An E-body rear will bolt in, even with the 1/2" difference in perches, but the pinion angle (6°) is wrong; the '65-'69 C-body is a better choice, same overall dimensions with the correct 3° pinion angle.
I just put the C-body rear in my '57 Dodge and it fits perfectly.
AWESOME John. Thanks!!!!
Haveta be a Dana 80 to hold yurr rear end up ..... LOONEYmoputzDUDE ! ... Toooo many Twinkies over the years I hear ! ..... BTW - do you have that that homely motor home ready furr some action ??!! No 413 anymore 4 u ...youz gotsta deal with a 5.9 12 valve CUMMINS NOW ... and it's gonna be bombed !!
