My 2004 F150 FX4 has a vibration in the front end. I feel it in the accelerator pedal. When I am driving strait or turning left it is there but to the left it stops. I have changed my cv’s and locking hubs along with the locking hub sensor. Plus the brake rotors and had the tires Balanced and rotated no change.
There are so many possibilities (such as worn tie rod ends) if the vehicle has seen hard off-road use.
Bite the bullet and see a suspension expert. Correct diagnosis will save you from replacing parts that do not need to be. As you can replace C.V.s you are obviously competent. Professional diagnosis + your labour saves time and money.