Well this is my first post so i would like to say howdy to the board and I'd also like to ask a question. As I scanned the wonderful images avaliable at this site, I came across thumper. It occurred to me that the wheels thumper has are exactly what I'm looking to get on my 70 AMX. Does anyone know what the specs are for these? I believe they are torq thrust II's but what size, and back spacing? thanks for everyones help.