TCI's new 6 speed 4l80e

[obi-1]

@69camaro

its just a regular 4380e just controlled different. i looked up the gear ratios they are 2.97, 2.23, 1.57, 1.18, 1.0, .75. if you do the math second gear is .75 of fist gear, and fourth is .75 of third. so its just using the overdrive gear to split the first two gears into four ratios. basically they made a controller for controlling the gear spliting and selling it as a whole kit. i think it is a waste of money.

Good info. I wonder why GM doesn’t do that from the factory? A 6 speed auto would be a nice option.