Ok, so this has been going on for months, here is what I have changed so far, pads & rotors x 4 wheels, 2 new front calipers, 4 x wheel bearings, 2 x front tie rod ends and still get a significant wobble when I hit the brakes over 90 km/h, seems worse going downhill - Anyone have any suggestions as to what I check next?


Will take it in for an alignment soon, leaning towards getting some new tires before next winter, but by the severity of the wobble I just cant believe it could be alignment or balancing causing the issue

 

do you feel the vibration in the steering wheel or body of the truck

 

I can definitely feel it in the body, but the steering wheel is worse, must shake almost 2 inches back and forth...

 

if you have a vibration braking...transferring into the steering wheel...its front brake related. Its quite possible the new rotors have excessive lateral runnout. did you buy a cheap rotor?

there is also a possibility of excess lateral runnout of the rotors from a stacked tolerance out of spec...ie the hub, rotor together each have some runnout when combined is excessive...the only fix in this instance is on car machining of the rotors.

 

Agree with primem Cheap rotors are seldom straight right out of the box. Is there a rust buildup between the hub and rotor. Total runout must be checked.