Vibration after brake job

They sure can. I even had vibration from one new drum (other three were good)

 

Every time I have a vibration in the front end it always comes down to a tire even if it looks good

 

I have changed steer tires on a truck and cause the steer axle drums to start vibrating under vibration. You could also have bolted your steer tires back on uneven.

So the way to tell, if you only feel the wobble/vibration during a brake application, then it’s the drums, if it’s all the time then your tires are bolted up out of round.

If your going to try to re-use steer axle brake drums, Mark the orientation of the drum to the hub before you break them loose and remount them the same way.

Anytime we bolt up steer tires, we always use a stud centering device. This will minimize the steer tire hop.

 

It may go away, after new shoes wear in a bit. Maybe even adjust all the brakes. Maybe fronts are grabbing first, or a softer grabby shoe, or a harder shoe. Either way a softer show may wear in, Harder shoe will wear drum in also. I’ve noticed that on my Trailers especially, when re using drums.Takes a little while for shoes to wear evenly into drum, and wear drum in also. I think it’s due to the shoes being thicker in the middle, than the edges, combined with used drums, also worn/warped a bit. I just did brakes on trailer. Theyre pulsating a little, But will go away.A couple of the Old shoes were sticking out beyond drum, as if spiders were bent. New shoes, supposedly same part # are all flush. Look perfect. I can’t explain it, maybe due to drum wear? Thin shoes? It almost looked like 2 sets of the old ones were wider, Either way, new shoes on my trailer will wear in and match up to old drums, soon. The Pulsating will go away.

 

You may want to check king pins, shocks, spring hangers, wheel end bearing play or anything else, on the front end,just for safety’s sake, maybe old shoes were masking the problem.

 

Most of the time when this happens right after a brake job is because something is slightly off center causing an out of round rotating assembly. This is trial and error if you can't spin balance the wheel, but you can remove your wheel, then remove your drum, turn your hub 180 degrees and reinstall the drum and wheel to change the mounting orientation with those parts and hopefully get lucky with a good balance.

 

Get cheap on your trailer not on your steers/drives, Steers do drums/rotors Shoes/Pads same on your drives get cheap on the trailers