When riding on cement streets when ever I cross the expansoin joints in the street (ABOUT EVERY 20 FEET SPACING ) I hear my disc rattle.I know it is rear disc because applying the brakes ever so slightly rattle stops.Is there an easy fix other than replacing pads.By the way I only have 25000 miles and it's been doing it for a while now.

 

It's not your rotor that's rattling because if it was, your tire would soon fall off.

 

i have a very similar rattle in the same situation. i cant tell if mine is in the fron or rear..but i know is the drive side. i cant figure out what it is!?

 

ttt..

 

Crawl under there with a rubber hammer and start beating on stuff. Well maybe not too hard. See if you can get it to make the noise and then pin-point it. It shouldn't be a rotor. Maybe a shock or something to easy to find.

 

I know that the noise is coming from the disc brake pads themselves,never once thought anything as stupid as a loose rotor.I just wanted to know if NBS trucks have any bushings or sleeves that the disc brake pads slide on that could be worn or causing rattle.thanks for the suggestions.

 

If you have sliding calipers check the anti-rattle springs. If the anti-rattle spring is missing or has been positioned incorrectly, a rattle will be heard when the brakes are not applied and the truck is traveling on a rough surface. If they are floating calipers, check the pins that hold the caliper to the anchor plate. They might be loose. A rattle can also be caused by excessive clearance between the rotor and the pads.

 

thanks,that sounds like the info I was looking for.

 

How did ya make out stall speed? I forgot to mention that some of the GM truck pads have L-shaped tabs that must be folded in order to keep the pad from rattling. Good luck.

 

Have not had time to look in to it yet.Let you know ,thanks again.