Did aluminum brake drums come standard on 87 GN's? Was it an option in 87? I thought they only came on 86's, but I see people advertising them as a rare option for 87's. Thanks.
if the car came with a open diff they got aluminum drums. and if it came with a posi it got iron drums. if you race the car put iron drums. the aluminum drums with racing tend to brake apart while doing a brake tourqe before launching.
