Ok I read the post and did some trouble shooting. Still could not find the problem so I took it to a transmission shop. They tell me the problem is in the torque converter. Because the pressures are higher in reverse the torque converter is locking up in reverse causing the stall problem. A new converter is $250. My question is will my torque converter out of my 99 dak with 3.9 engine be the same stall speed as the 03? Would it be just as simple to swap trannies rather than converters since the 03 has 180,000 miles and the 99 has just over 100,000 miles.