Just got my new car craft today. Saw an ad for TCI's six speed auto. It can handle up to 850 hp. I want one. I bet it's gonna be expensive.
It's is actually a 4L80-E with a different planetary set (to change the ratios) with changes made to the valve body and to the TCU that it comes with. We do not have the final price yet, but it will be a complete package down to the dipstick.
TgThe TCI version will come with an aftermarket planetary that has 2.97, 2.23, 1.57, 1.18, 1.1, .75 ratios as well as aftermarket mainshaft, input shaft, sprag assembly, stock depth pan and clutches. The complete package will come with transmission, converter, our TCU w/harness, paddle shifter for manual option, dipstick and cooler.