C20 dually conversion

[72kool]

Ok before i start, im sorry if this is a repeat of other threads i have read through a lot of threads and post but did not find exactly what i needed.

i have a 1972 gmc C20 with a dana 60 rear end and 4.10 gears. it has the trailing arm and coil spring suspension.

i want to convert it to dual rear wheels. i understand i could swap axles and get this but i want to keep my dana 60 and try to just bolt on dual rear wheels. why do this?? first is, its my way to be different from other trucks and it is useful to me. also i want to keep my dana 60 because i have it now, and i can keep the 4.10 gears vs having 4.57 or 5.10 (not positive on exact numbers of the lower gears)

can i just bolt dual wheels on? do i need longer studs or a spacer? where can i purchase any of these parts ?

as for making them fit i have my own ideas as to wheel well fitment. i want a more tucked look and not have a large fender on the sides. i will try to post a picture of what im trying to do.

also i have heard that i may need a larger wheel than 16" because of the drum size. can anybody confirm this?

i know that just putting dual wheels on does not increase its capacities, it will get me the look i want though and i plan on boxing the frame and installing air bags instead of coils on custom trailing arms. this sould beef up the suspension some. i could get a c30 and it would be easier, but i like to be different and do it my own style. any help would be greatly appreciated

the first picture is the what i am trying to do. if this is a members truck, please tell me more. i want to keep the front wheel the way it is. i like that look better for now.