Quote:
Originally Posted by THEFERMANATOR
The new TCI 6 speed is nothing more than the JET valve body that JET cchips used to sell. They discontinued it due to low sales, and TCI bought it. It simply engages the O/D unit in 1st and 2nd to give you 2 extra gears. O/D is still the same ratio, so it provides no reduction in RPM's on the highway. There are a few companies now working on adapting the new 6 speeds to the older engines. They bolt up and such, but the controllers for the transmission is part of the valve body which means you have to make a box to talk to it since you can't simply use a stand-alone TCM for it.
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that would be sweet a better trans on a 5.7