Anyone using these? What size did you end up buying? I did some googling but had mixed results, I'd like to pick some up on the way home from work if someone knows the size.

Here's the list from Summit...
http://m.summitracing.com/search/part-ty...=T-bolt%20clamp


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual