Right now my 53 has a set of P235/75R15 tires on it. Stock suspension, 6 lug, Drum all the way around, etc... Looking to give it a "lower stance" with a new set of tires. wheels I have are 15x7". Not sure of the B.S. What ever was close to stock i'm guessing. They don't stick out, or anything. If you have some tire size suggestions, and pictures that would be great! Here is what my truck currently looks like...
If you like the width dimension of your current tires, you can always go to a 70, 65, or 60 Series tire that will have a shorter sidewall profile.