My wife has a 99 4 door 2wd. When driving a constant speed for longer distances it feels like the tranny slips. It is very quick.....I thought it might be the torque converter locking up seeing as the tranny fluid is full and there is no other signs of it going south. Any insight would be appreciated.

 

If you have an automatic, tow in '3' not in 'D' to improve transmission cooling. I had an acquaintance that spent his IRA on a big Suburban and trailer home only to burn up the trans in Arizona because he'd towed from PA in D.

 

try to put some Lucas trany fix its about $11 a quart