New drums & rotors... brakes still pulsating

[spacoli]

Hi guy's, I have another question.

Just had drums installed the other day, so I thought I should have new rotors on also because the brakes were really pulsating and vibration.



Had new rotors installed and the pulsating has not even subsided hardly at all. Seems to be more noticable at lower speeds and it vibrates the whole truck.

Is it possible something else worn out in the drivetrain? I have detected a little humming noise and have noticed some more noticable vibrating when downshifting.

I had just replaced the one rear u-joint and didn't think the other one was bad, but maybe it is. Would this cause the pusating and vibration when braking?

FYI... this truck has sitting for over 2 yrs, had allot of rust build up around everything that could rust.

EDIT: I just remembered, I noticed this bad pulsating after the guy who did the inspection had to heat,pry and bang toget the drums off. He used so much heat he cracked the drums aroumd the bolt holes.
He put new drums on and I drove away, that's when I first noticed it. So I went and bought rotors thinking that was the problem.


Thanks

[spacoli]

I think I figured out my brake problem.

I pulled the drums and found one side the brake shoes engauged the drum even and you can plainly see it on the drums. The other side I noticed as I spun the wheel there was a spot that got tight as it was rotated. I then looked inside the drum and I seen spots where the brake shoes were ingauging more than other spots of the drum.

I then installed one of the old drums and took it for a drive, the problem went away. I only had a little bit of pusating, I think that's from uneven brake pads and shoes. So I will be heading to the parts store to get another drum exchange.

[spacoli]

Tires are changed, that helped out, smoother riding now. Now I can concentrate on other noises.

Did another drum change (new replacement), took it for a test drive and it seems that the pulsating is coming back. I'm going to drive for a day of so and see what happens. Is it possible that there is a bad batch of drum being manufactured. Same Carquest parts. I don't know what to do if this drum is bad, take it back and ask for another or just get my money back and buy from andonther parts store?