[Bob Mulry]

OK Ron,

I guess that I have to give up one of my old guy tricks...........

Measure the roll out on your rear tires, with the car staged take a look at the name on the side of the tire or a paint stripe on the side wall......

If it's a 94" roll out, that tire should turn exactly 94" and move the car forward 94"........

With your eyes you should be able to read the name on the sidewall for 1 complete tire revolution..

If you use a camera during testing put a chalk mark on the tire and ground at the spot they touch the track, measure 94" forward and put a chalk mark on the track. This way you see if it is hooked up 100%

I know about loaded radius, but the tire tread still has to rotate 1 revolution....

Hope this helps sort it out,
Bob