How much power does your car make and have you ran this set up at the track yet[/QUOTE
Car has made 982rwhp with the T56. The TH400 just when in today but the driveshaft needs to be made so no rack times yet.
pretty BAD ASS setup! I was contemplating using a c4 with a gear vendor overdrive on my turbo coupe. Too much money for my budget build. Let us know how splitting the gears works for you. Sounds like lots and lots of fun.
Are you using an electric controller for the splitting?
Why go TH400 with GV, when a 4L80 is a TH400 w/ OD, for half the cost and its lighter.