Need brake help

[Angus]

I've got an issue with my 02 Dakota that I can't figure out and hope someone here can help me out. A couple years ago I put new drums and shoes on the rear and rotors and pads on the front, the truck was due and the rear had a little bounce to it which I attributed to a bad drum so I replaced everything. After the brake job the brakes worked great but the little bounce didn't go away. I learned to deal with it until recently when it seems like the bounce is getting a little more noticeable and I've had enough, I need it fixed. This morning I inspected both rear brake assemblies hoping to see something obvious, I saw nothing, shoes and drums look fine, don't know where to look next.
Any thoughts/suggestions are greatly appreciated.

[slowhand]

Going to need more description of the little bounce.
Is it right at the end of your stop? one bounce or repeated?

[Angus]

Repeated, speed doesn't seem to matter, although more noticeable getting off the freeway.

[Mark Brenckle]

Did you bleed them when you replaced the parts? Might have some air in the line.

[slowhand]

Get up To freeway speeds. lightly apply the E-brake see if you feel it. If you do You have a warped brake drum. Easy fix to have it machined true again. If You don't feel it with the e-brake applied then You might have a warped rotor.
I have had many warped rotors and or Drums right out of the box. What brand parts?
 

[slowhand]

Did you bleed them when you replaced the parts? Might have some air in the line.

Air in the brake system will not cause a bounce in the brakes. unless his bounce is a low brake pedal

[Angus]

What brand parts?

O'reilly, which was probably my first mistake, wife was a student at the UW at the time, funds were tight.

[KFhunter]

Could be anything from a bad tire, lost wheel weight, mud, wheel bearings, driveline going out, carrier bearing, transmission output shaft bearing, blown shocks on wavy pavement

I would rotate the rear tire to the front, see if your bounce moves

While tires are still on but in the air, check wheel bearings

Inspect drive shaft, wiggle the u joints

Wiggle the output shaft on your trans

Start with the easy things that don't cost anything




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[KFhunter]

I had a bounce like you described, took wheels off and power washed inside the wheel getting the dirt out, bounce gone

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[slowhand]

Or You can take it to a Mechanic like Myself. They will charge You an hour ($100+) to tell You what's wrong. Then do the repairs Yourself.
 

[slowhand]

What brand parts?

O'reilly, which was probably my first mistake, wife was a student at the UW at the time, funds were tight.

And yes O'reilly is a bottom option for parts quality.

[jackelope]

Are you talking about a pulsation when you apply the brakes?

Vibration while driving?

What do you mean by “bounce?”

[Angus]

Pulsating is probably a better description, I just said bounce because my kid asked me once why the truck always bounces when we slow down.

[KFhunter]

On a side note...

I'm a big fan of EBC brakes

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[slowhand]

I got my money on it being a high quality china brake drum or both. Get the rear drums machined and Your problem should be solved.