i've done it through reprogramming... rather than waiting for 45MPH for the TCC to lockup, i'm now in the 30MPH range(with lockup in 3rd and 4th gear, rather than just 4th), i like the feel of it, engine feels much more connected to the wheels, rather than spinning/slipping the torque converter up to the ~2100RPM stall point.
some people don't like the feel of it though.
i need to see if i can patch in the ability to use lockup in 2nd gear without lowering the temperature threshold to operate the trans in hot mode all of the time.
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