I guess you made something like this but permanent on the frame.
Ray, a local mechanic / Laguna Seca type racer had them made up and welded on. Pics tomorrow. He advocates no crisscrossing of straps. I might just go ape shyt and do both ways fore and aft. It's not the $$$ I'm worried about if the car fell off, more the embarrassment and inconvenience while on a trip. I'd sleep better.
Thanks for the 2 x 4 idea Robert but there's only 1 1/2" of deck on the outside of each tire. Your idea has merit though and I could easily screw down a 2 x 4 on the inside of each tire accomplishing the same thing I think instead of the 3" x 3" steel angle. I just hate the idea of something rubbing on those nice Vreds....