My LS2 roadster runs a T56 (2.66, 1.78, 1.3, 1.0, 0.80, 0.62) and a 3.9 final drive.

If and when I build a coupe I think I'll use a TKO instead. I find I start off in 2nd gear quite often unless parked facing uphill and even then it is a real short shift. We don't have the nice highways in Australia that the US has.