Pulsing while driving
Iv'e been having this problem in with my truck for the past probably 3 years. I've been trying to narrow it down to specific situations for a long time, but can't come up with any ways to replicate it every time. My trucks specs are: 2002 XLT 2WD, coil spring, stock tire size.
Basically my whole truck shakes about 5 times a second just enough to feel it sitting in the seat and on the steering wheel when I'm driving. It is almost always present and the roughest when I brake, although lately I have been noticing at certain times when I let off the gas and sometimes I think I can feel it when I'm just cruising. My first and obvious suspicion was warped rotors. I had those replaced about 2 years ago and the problem lessened for about a week after then went back to normal. About 6 months ago I had all of the shocks replaced, ball joints, upper control arms, and tie rod ends all replaced as well. This didn't help the pulsing much at all.
Any ideas on what could be up?