8 3/4 swap questions...

Some a bodies like '71 swinger , possible significance had Kelsey front disc, had "10 x 2 or drums on it.

True, but they also usually Had a 8 3/4 diff too. Like a scamp with a trailer towing package. Small bolt 2” does exist but is pretty rare. Funny how the 340 cars often got 1.75” but a 318 with tow pkg got 2”