Posted 2009-07-31 11:20 AM (#108797) Subject: Chevy Duramax Rear Brakes.....
Elite Veteran
Posts: 1069 Location: MI.
We just pulled off the rotors. The front pads and rotors are wearing great but the backs are shot. The pad is gone on one side. The rotors are wearing alot worse on the inside.....And the outside is wearing only in the middle. The brakes aren't "pushing" out like they should. Dragging? Has anyone had problems with a 2005 Chevy 1 ton truck brakes? 38,000 miles......Geez!
Posted 2009-07-31 3:49 PM (#108806 - in reply to #108801) Subject: RE: Chevy Duramax 1 ton Rear Brakes.....
Expert
Posts: 3853 Location: Vermont
Originally written by Gone on 2009-07-31 1:46 PM
We just came back from purchasing new rotors and pads. But it doesn't fix the underlying reason why they are shot.
You answered it in your first message...Your parking brakes were dragging...that is where you want to look...my first guess is your cable is binding up and NOT releasing after application...you want to see the cable movement and the retraction of the pads WHEN YOU(or someone...) RELEASES the parking brake...
Get the rig on a lift and manually spin the wheels and see just how much drag there is after an application and release of the parking brakes...there should be NONE...
Posted 2009-07-31 4:21 PM (#108807 - in reply to #108797) Subject: RE: Chevy Duramax 1 ton Rear Brakes.....
Elite Veteran
Posts: 795 Location: Tenn/Ala.
Also check the calipar slides. The calipar pushes from only one side, so it must slide freely in order for the pressure on the pads to be even. And then it must release cleanly. I would suspicion road salt, etc. would be challenging on the calipar mounting hardware. An aniti-seize type of lubricant is an acceptable lube after a thorough cleaning.
Posted 2009-07-31 4:31 PM (#108808 - in reply to #108797) Subject: RE: Chevy Duramax 1 ton Rear Brakes.....
Expert
Posts: 3802 Location: Rocky Mount N.C.
The rear parking brakes are seperate from the service brakes on the GM, 2500HD and 3500 trucks. They have a seperate pair of parking brake "shoes", that run against a drum surface, on the backside of the brake rotor..... Those calipers need a good cleaning and a coat of never seize when you reinstall them....
Here's a thread that may help... Got alot of pictures also...
Posted 2009-07-31 6:34 PM (#108811 - in reply to #108797) Subject: RE: Chevy Duramax 1 ton Rear Brakes.....
Extreme Veteran
Posts: 406 Location: Minneapolis, MN
When disk brake pads wear one one side, always the inside pad...or the pad that is against the pistons...is a sign on the caliper slides binding/sticking.
Posted 2009-08-01 9:23 AM (#108827 - in reply to #108797) Subject: RE: Chevy Duramax 1 ton Rear Brakes.....
Elite Veteran
Posts: 1069 Location: MI.
We cleaned and greased what needed to be.......Everything is moving freely. I am hoping that due to the truck sitting for a while before we purchased it, may have been the cause. It sure is nice knowing how to do this stuff thanks to my hubby. I wouldn't want to pay a garage top dollar!
Chevy Duramax Rear Brakes.....
) RELEASES the parking brake...