Those Running 3.73 And a TF w/ LockUp.. What's your highway Driving Like?
I'll have to think on the 3.08 and do some reading..
Just something to think about, but the later model cars with an 8HP run a 3.06 for the performance ratio and that is with an almost 29" tall tire. Those 8HP's have some really deep first gears and (I don't think) work well with the normal idea of a performance ratio. I think I settled on a 2.94 with a 26" tire when I was looking at doing one. A 3.08 with a 26" tire might work, but seems like the 3.2x ratio was actually starting to get too deep.
I guess the issue is even the computer can't keep up and shift fast enough when the rear gear get's too deep, and the cars hit the rev limiter sometimes. Plus with a 4.70 1st and 3.2x gears it is like a 727 and 6.20 setup. Might as well not even use first, probably shifts into second in the first 10 feet.
Doesn't really matter now, but maybe it is something to factor in if you do look at an 8 speed later.
Edit - I guess you have an 8 speed and 3.55's so you have probably thought about this some already. Nevermind. :D
