Anyone ever used one?
Who makes them?
How did they fit?
What did they cost you?

I'm getting close to the 11.50 range and need to think about adding one to my wife's '68 barracuda fastback but I don't really want to do anything permanent or cut up anything, especially since I just restored the interior a year ago. So I thought I'd look into bolt in options. I've got bold in frame connectors already installed. and I'm going to put cal-tracks on it this winter.

Let me hear your experiences with bolt in kits, please.