I recently got a pair of GM aluminum brake drums at a swap meet. They seem to be factory stuff. Anyone know what they came on? I'm putting them on my 68 chevelle.

Mid 80s camaros had alum. duums,I used some on the rear of a 66 chevelle.

They came on G bodies as well as some late model B bodies. You will have to ream them out so that they will fit over the axle flanges. I have a set on an 86 Caprice that I will be taking them off and putting them on my 70 :D .

What's the advantage of aluminum drums? Lighter weight/better heat disippation?

Reid

The only major advantage would be weight. They're light enough that you could use them for a frisbee. As far as heat dissipation, I don't know. I guess they probably would get rid of heat better than cast iron.