I have 105k on mine and the previous owner had tranny rebuilt at 90k?!?! I love the truck but getting concerned here. I had the tranny wanting to shift in / out of OD at highway speeds, but after the wealth of knowledge on this site I changed the TPS and that took care of the issue. However, now (big sigh) the truck doesn't want to change out of 2nd and 3rd gear without having to let up on the throttle.
Any suggestions? Will the speed sensor (mentioned above ^^^^^) help me on this? How much are those?
Mods: Superchips; Spectre CAI; Magnaflow duals; 180* thermostat