Need to no if I can swap a cab from a 75 c20 scottsdale 3 quarter ton with a 77 c20 chyen camper special cab

 

yes you can, for reference, the only times you will run into problems with swapping that model truck cabs is when swapping between 70's and 80's cabs the hoods are diff and so is the electrical, when swapping between just 70's cabs the thing to watch is putting a 2wd cab on a 4x4 chassis, u will need 3" body lift to do so, when swapping what u have over, just look at the electrical features and make sure they are the sam, if they arent u should use the interior pieces from your truck (if u want them to work)