Originally Posted by Wacker
I know the HD trucks use the same stock verter and one would have to assume they demand full lockup all the time for towing. Otherwise the converter would'nt last a month.
this is right from the gm service manual,, i think finding the o/s that uses full lock up will be the key to integrating it into out tcm:
A torque converter with an electronically controlled capacity clutch (ECCC). ECCC was developed to reduce the possibility of noise, vibration, or chuggle caused by TCC apply. In RWD 6-Speed transmissions, this slippage can range from 0-50 RPM. Full lockup (0 RPM slip) is still available on some applications
. TCC may apply in 2nd, 3rd, 4th, 5th, or 6th gears. The specific TCC apply points and the amount of clutch slippage are determined by a number of operating conditions, including throttle position, vehicle speed, gear, as well as specific vehicle application. Transmission fluid temperature will also affect TCC apply points.