Q: Can you swap the iron drums for aluminum?
A: Yes. One thing though, the aluminums are about .25 inches wider than the iron.. This is thought to be for the 16" rims.. Some people on the f-bod list with 16" (GTA & IROC styles only for some reason) and iron drums have spacers between them.. This is needed, my iron drum with GTA rim has a little play in it.. Either get spacers or aluminum drums..