it goes thru the gears great but it wants to shudder when in overdrive
If i kick it down it picks right up but under slow acceleration shudders
could this be the shift control solenoid?

I just replaced all coils ,pluges, inner cooler, lower intake, injecter @ # 6 it still miss fires good compession.

What is the best spark plug for my truck I have heard horror stories about 3 valve motors but mine is two but would like to know which plug is the best for me. thanks

I am trying to replace the brakes and rotors on my 2000 ford f-150 Harley Davidson. The rotors won't come off. Took off the brakes and the claiper bracket and the screw with the attched hose. There is a cap at the end of the rotor that I think covers the ball bearrings. How can I safely replace the rotors. They are really stuck.