360 pros & cons vs 318

Also if someone could help me out on wheat vehicle i could swipe the drums off of, i want to change my bolt pattern. The car has 2 different bolt patterned axles, right now i have chevy 4 3/4 pattern with 14" westerns, i want to change back to the 4 1/2 pattern to get some better wheels. I was about to do it, then remembered it has 4 3/4 drums on it :( lol is there any way i can find out what brand the axles are? They look like the moser etc but i cant see a part # or brand, any help is appreciated. Thanks for all the great info n help