Went for a short test run and snapped these
B-body rears aren't all the same length...
'62-'63= 53 1/4" (And '64 Max Wedge)
'64 = 55 5/8" (Exc. Max Wedge)
'65-'67= 54 1/4"
'68-'70= 54 15/16"
'71-'74= 57 7/8"
'71-'73 wagon= 59 7/16"
Prior to '65 they had tapered axles with the center nut and keyway.
I have a '68-70 B body rear under my Duster. You just have to match your backspacing to the width of the rear axle. In my case that's 7" of backspacing on an 18x10" rim. I run 295/35/18's, but also have the 1/2" spring hanger/shackle offset kit and trimmed about a 1/2" off the quarter flange.
I'll have to take some new pictures. My car sits a little lower now, I swapped the offset shackles out for a set of spring sliders. Lowered the tail end about 3/8" from where it was here. Still has a teeny bit of rake, I cheated the front end down a smidge more too.
B-body rears aren't all the same length...
'62-'63= 53 1/4" (And '64 Max Wedge)
'64 = 55 5/8" (Exc. Max Wedge)
'65-'67= 54 1/4"
'68-'70= 54 15/16"
'71-'74= 57 7/8"
'71-'73 wagon= 59 7/16"
Prior to '65 they had tapered axles with the center nut and keyway.
I have a '68-70 B body rear under my Duster. You just have to match your backspacing to the width of the rear axle. In my case that's 7" of backspacing on an 18x10" rim. I run 295/35/18's, but also have the 1/2" spring hanger/shackle offset kit and trimmed about a 1/2" off the quarter flange.
I'll have to take some new pictures. My car sits a little lower now, I swapped the offset shackles out for a set of spring sliders. Lowered the tail end about 3/8" from where it was here. Still has a teeny bit of rake, I cheated the front end down a smidge more too.