05-01-2013, 06:03 PM
I am no expert but I am happy to help with what I know. You said you are running a 1971 8/34 so I am assuming it is small bolt pattern, are you going to swap axles and go 73 and up larger pattern? I am not positive but I think the truck parts you are looking at are all the larger lug pattern and you would need to swap axles as well and those you would have to buy new or cut down and resplined.
You can ask your parts store for help by having them pull a axle bearing for the truck...