okay, need some help here. I am newly seperated and can't ask my ex what to do about my truck. I start it up drive a few feet and it won't shift into the next gear. It rev's high but won't shift. I can go from 1st to 2nd but no drive. I am afraid to take it anywhere and not know what I am up against. Fluid was fine, I checked it in nuetral after it warm. Never slipped at all. 1998 dodge durango 135000 miles. Please help, thanx so much