I went down to autozone to pick up a new T.P.S. and there was two different part numbers, does anyone know why this is so. Is one adjustable and one not or what is it. I dont know nothin about it, but i dont have a way to take it off, and get down there after that, and then pick up my other one. because i would be without transportation. If i knew which one it wsa i would just order it off the net and have it sent to my house.