[MAStuart]

AJ The computer I was using had a bad keyboard so the answer was short. The dimension was not from a Kirkham car. It was from Chucks drawings. Center points on his drawings are 21 5/8 and are 1/2 inch above the 3 inch main rails. I do not know if these dimensions are correct because I have found other problems in the drawings. One other note Chucks drawings are for a car with nonadjustable suspension.

Mark