We will be driving just fine and all of a sudden the torque convertor will shift out of lockup and then it will shift right back into lockup. It does this for a while and then stays in for a while and then starts doing it again. It has been getting worse lately also. However it has never done it while the cruise control is on. Any ideas would be very appreciated. 1995 Dodge Ram 2500 Cummins Turbo Diesel Automatic Tranny 275,000 miles. Just put new tranny in along with Banks Torque Convertor about 20,000 miles ago.