I have a 2008 Silverado 3500 diesel dually 40,000 miles (80% towing 12,000# trailer) started hearing squealing before and after braking. Everyone said it was coming from right front, so I put new rotors and pads on front (pads didn't look bad at all, rotors needed resurface or change).Took for test ride still making same noise, someone now said it sounded like the back. So I took the back apart and pads completely shot, rotors need resurface or change. Didn't have time to pull axles and all that so threw some new pads on for now and noise is gone.Any thoughts on why back brakes wore out before fronts or anyone else have this happen. All my other vehicles have typically worn 2 to 1 front to back. Don't know if maybe computer senses extra load and supplies more back brake to compensate. I know Chevy had something mechanical to do that in the 80's( didn't work very good).
Posted 2014-07-19 10:57 PM (#160027 - in reply to #160025) Subject: RE: Chevy 3500 brakes
Expert
Posts: 2953 Location: North Carolina
My Chevy 3500 back brakes wore quickly too. 90 percent of use was towing a GN. I suspect one of the pads hung up. I had a devil of a time removing the old pad. New pad was tight too. A little work with a file fixed it. Make sure the pads are loose across the caliper.
The back rotors are thinner than the fronts ... at least the wear limits are.
New back rotors are in the living room till I get all the parts (seals & gaskets) together with some time to pull the axles..
Question to anybody : How much does the truck have to be tipped up to keep the differential oil from spilling out when I remove the axle? That synthetic oil is quite pricey. A distance from the ground to the wheel center would be helpful when I attempt this. Any other tips would be appreciated too.
Posted 2014-07-23 12:47 PM (#160096 - in reply to #160027) Subject: RE: Chevy 3500 brakes
New User
Posts: 3
Location: B.C.
Question to anybody : How much does the truck have to be tipped up to keep the differential oil from spilling out when I remove the axle? That synthetic oil is quite pricey. A distance from the ground to the wheel center would be helpful when I attempt this. Any other tips would be appreciated too.
Make sure bottom of the axle tube is jacked above the diff fill port, it's different for every axle, so I can't quite give a height in inches. Gear oil is filled to the bottom of the bolt/plug in the cover. A little fluid will always run out, but just what is in the end of the tube at the bearing, not usually enough to make a difference.
Posted 2014-07-23 2:18 PM (#160099 - in reply to #160027) Subject: RE: Chevy 3500 brakes
New User
Posts: 3
Location: B.C.
Question to anybody : How much does the truck have to be tipped up to keep the differential oil from spilling out when I remove the axle? That synthetic oil is quite pricey. A distance from the ground to the wheel center would be helpful when I attempt this. Any other tips would be appreciated too.
Make sure bottom of the axle tube is jacked above the diff fill port, it's different for every axle, so I can't quite give a height in inches. Gear oil is filled to the bottom of the bolt/plug in the cover. A little fluid will always run out, but just what is in the end of the tube at the bearing, not usually enough to make a difference.
Chevy 3500 brakes
