The C body 8 3/4 is going to have the wrong wheel bolt pattern, besides, I believe the C body rear end is the same width as a truck rear end.
73-93 Dodge trucks all that the same front axle widths, and the same rear axle widths except the dully trucks have extensions on the front and the rears are wider.
A lot of mid 70s Dodge trucks got some pretty wide and deep offset wheels from the factory. They were rough on the front wheel bearings, but they made the truck look a lot wider.
If you have the correct wheel bolt pattern, bolt them on and see what they look like. Gene
