Thanks IC2 I think the 3:55 would be the smartest route. At this point we are not sure whate tire combo would look and fit well under the coupe. This seems to be the biggest road block so far for us. Backspacing and size. We are leaning toward 16" in the rear and 15" in the front.
We need to send the computer off to have it reprogrammed and we have to know the tire size and gears.

Dave, do you have any 3:55 gears your looking to sell?