Front End Vibration While Braking

[Ragecajun]

My Truck:
2003 F250 CC SB 7.3 with 4" lift and 35" tires. (I just bought it two weeks ago)...


My first thought was warped rotors...


The guy I bought the truck from replaced front rotors, (Cheap brand), and pads. No change..


The truck pulsates/vibrates VIOLENTLY!!! when brakes are applied at speeds over 40 MPH. Slow speeds the truck vibrates very little or none at all.

I have noticed that once it starts vibrating, it does it at all speeds.



I was told by my mechanic that since the steering wheel shakes and it only occurs while braking, that the newly installed rotors were "probably" warped.

I bought 4 new Powerslot rotors and Hawk pads. I installed the front rotors & pads, 4 new shocks, and front steering stabilizer with no change.

I am currently installing the rear rotors & pads and repairing a leaking rear axel seal.

I was wondering if anyone else had any advice, guidance.

Thanks


This is my first Diesel and 4X4 to own.

[StarDriver]

I'd check everything on the front suspension to make sure it is tight, it can also cause a vibration.

[Ragecajun]

Already been done.

Bj are all good. Three of four tie rods are slightly worn. Sway bar links are shot. Everything else checks out fine.

[Ragecajun]

It was the rear rotors....I did not believe that they made the truck shake that bad...

I also replaced a leaking rear axle seal and changed the rear Diff fluid with some Royal Purple.


Thanks All who offered assistance!!!