Since you are changing the rear
and may run slicks
You might want to look at "Wheel spacing"
left to right
So either set of wheels will fit with out rubbing.
I like the 80"s ford 3/4 ton rears
The tubes are thick almost a 1/2"
and 3" dia
watch out for the D-61,
pinion has alot of off-set.
Not a good gear selection
We just finished a Dana with Set up kit from Dr. Diff.
has 3.55 ratio, Tru trac unit
all new brake hardware, lines
ONLY, due to logistics
Moser narrowed the rear, welded on housing ends and spring pads