8.75 out of 74 Truck
Pay attention to the wheel bolt pattern on the axles. I think 74 was the first year they started the big ol 5.5 bolt pattern on some trucks. My cousin had a 74 Power Wagon that had that bolt pattern. I'm swapping a truck 8 3/4 housing into my 88 D100 to get rid of the Bonneville geared 9 1/4 that's in it. I bought a set of 5.5 axles for a truck 8 3/4 from a member here a few years ago so I could keep the brakes that are on the truck. Just gotta drill one hole in the backing plates and sock em on!