ok i just picked up a 2000 f150 4x4 flareside with 165000 miles on it. I bought it really cheap but it is quickly becomingto have not cheap i had to have brake pads all the way around including rotors on the rear, upper and lower ball joints tie rod end control arms...and a starter. About 1800 on top of the 4 i paid for it. Any way i was driving it home from the shop and i noticed that at highway speed 65-75 when i let off the gas it feels like a downshift occurs instead of coasting. However the rpms dont drop. Any ideas?

 

ok i just took it for another ride up one exit and back on the interstate and its not doing it now, the only thing that i can think of that i did after i noticed it on the way home i turned the overdrive on and off a couple of times... hmmm