Well alrighty then. The 73 I just parted was missing the front axle when I got it so someone maybe changed out the rear. At one time I had probably around 10 truck 8.75 rears and all had 4.5 bc axles.
Love learning new stuff.
It blew my mind when I found out with that last 8-3/4 I pulled. I was thinking someone had the axles custom built at some point but I googled it.
in 85 all the 2x trucks went 5 on 5.5 with the 10 bolt 8 1/4 and 12 bolt 9 1/4 axles being 5 on 5.5 and IIRC the axles do not interchange due to carrier side gears/spider gears.
76 new Yorker front rotors will work on the 82-84 2x truck spindles & 85-93 2x truck spindles when swapping down to 5 on 4.5 to match a 8 3/4 5 on 4.5
