not an LX or an SRT but a true MOPAR. for sum odd reason,im getting slippage or hesitation at (60-80 mph) at crusing speed. i took it to a local transmission shop an they hooked a star scan up and there was no codes showing up.the guy even drove the car with the star scan hooked up and he can feel the car slipping at crusing speed.the car runs fine 1st -4th gear.can anybody point me into the right direction?