bouncing after rear brakes installed

I had rear brakes installed and rotors grinded. Now the car is severally bounding down the road and there is a smell of burn tire/oil. I took it back and they said the smell is typical of new brakes and they re-greased the rear, they also said I may need new caliper, but it was not bouncing before I took it in for new brakes... but it is still bouncing. have not driven it long enough for smell, wanted to get this message out for advise quickly.

What could cause the bouncing.

What year vehicle and by boucing do you mean the brake pedal feels like pulsating when steppinng on it???

2000 GMC Jimmy, 4WD; "do you mean the brake (http://www.automotiveforums.com/vbulletin/newreply.php?do=newreply&noquote=1&p=6972540#) pedal feels like pulsating when steppinng on it???", No, bouncing while driving. No unusual experience when brakeing.

Very strange symptom of a brake job...

Smell leads me to believe you have a sticking caliper. Did you notice any smoke from the rear wheels? If you jack up the rear, can you turn the wheels by hand?

Burning rubber smell is not a normal result of a brake job; this doesn't sound like a very reputable shop to me. Hmmm... maybe the problem is that they removed the shocks during the brake job lol

Was there a reason for grinding the rotors? Why did they suggest you may need a new caliper? Sounds like they already know what the problem is.

Very strange symptom of a brake job...

Smell leads me to believe you have a sticking caliper. Did you notice any smoke from the rear wheels? If you jack up the rear, can you turn the wheels by hand?

Burning rubber smell is not a normal result of a brake job; this doesn't sound like a very reputable shop to me. Hmmm... maybe the problem is that they removed the shocks during the brake job lol

Was there a reason for grinding the rotors? Why did they suggest you may need a new caliper? Sounds like they already know what the problem is.

I agree it sounds like a frozen caliper, thus the burnt rubber you smell is your tire being flat spotted by not turning freely.

Find another shop or remove the wheel and caliper and install a new one. Just make sure you grease ther slide pins good and make sure the caliper moves freely.

If the vehicle bounces the shocks are broken. brakes would not cause a vehicle to bounce.

I do not recommend cutting of the rotors or drums. the use of pad /shoe materials in use today wear down the soft steel in a great amount. so much so that depending on the pad quaility the most you get is one or two replacements.

the drums should be replaced and never cut . a cut drum is not going to stop the vehicle. the radius of the shoe is now different than the radius of the drum. only the top portion of the shoe is braking .