Wheel Adapters ?? YA or Nay

It really SHOULD be large bolt pattern by 75 but I suppose stranger things have happened. Officially I think 73 & later are supposed to be LBP but when the car has drum brakes all around there seems to be some question as to what bolt pattern it'll have. Somebody jump in here....Do all LBP cars have 1/2" studs? Would that be a way to tell? Of course you can always measure the bolt circle to be sure.