Pulsating in the pedal would come from warped brake rotors, maybe even the steering wheel.
Clunking in the front is symptom of a bad ball joint tie rod end or you may broken a sway bar end link.
The CV's simlpe slide in and out to remove and install. There is a locking clip that helps keep it in place. So it moving is normal.
40k on 35's not to mention how many ever miles before that. I would be willing to guess your wheel bearings are toast along with upper/lower ball joints and at least outer tie rod ends.
99 x-cab 4x4 4.0l auto
mods, cranked t-bars, silencer delete, k&n drop in, Rebuilt trans ,Trans Go stage 3 shift kit, 3200stall Fuddle Racing Torque Converter,
VANIR 63mm TB, Roush split rear exit exhuast, E-Fan, JBA Headers
Auto up/down both windows, OHC, EATC (soon to be modded)
03 Crown Victoria Police Interceptor