D100 rearend in A body

Both of my D100's have 8.25 axles

Both were 225, 833 OD trucks.

The 1980 has 5 on 4.5, the 1987 has 5 on 5 bolt pattern.

Oddly enough, the 9 1/4 axles from Dakota R/T trucks (I have one and a spare axle) are wider than the D 100 axles!