Vibration while braking.
Jack the truck up so the wheel's off the ground and grab the wheel and try to shake it. If there's play inside the hub it's the bearings. Also if the vibration is consistent when braking I would perform a runout inspection of the rotors and hubs. New rotors aren't necessarily going to be straight. Surface imperfections ( a difference in friction coeffcient ) on the rotor can cause a vibration when no measurable runout exists. There are many things that can cause a brake vibration, worn wheel bearings, worn/loose suspension components etc.
do you feel the vibration in the steering wheel or more in the seat? Did you replace pads and rotors in front and rear?
Not feeling it in the steering wheel. Its more like a hopping feel. Rotor and pads on front just pads on read
Did you machine the rear rotors? Was there any rust on them? Rust is very common on rear rotors on the inside
No exteria rust just a visual check thou. Used a straight edge to check rotor face.
it would be hard to check the inside of rotor with a straight edge. do you know if your parking brake uses the rotor in rear or does it have a drum style within the rotor? if its through the rotor try to apply that brake slowly to try to simulate your problem without front brakes in the equation
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