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Thread: Rear Brake Help.... please
06-12-2013, 10:06 AM #1
- Join Date
- Aug 2012
- Ontario, Canada
Rear Brake Help.... please
I just replaced the rear pads and rotors on my 2000 Silverado 4x4. The old parts came out fine, but when putting the new parts on, I ran into some trouble. I removed the two 18mm bolts holding on the caliper. When putting the bolts back in, the new brake rotor pulls to one side and sits crooked. The caliper side (3:00 position) looks good but the other side (9:00 position) sticks out a few mm. After playing around with them I got them almost straight. I put the wheels back on and took it for a test drive. The back brakes are not releasing, they stay on. I made sure to fully compress the single piston in the caliper before putting the new pads in and the caliper fit easily over the new rotors. Any thoughts? Could the rotors be too thick? They are listed as 3/4" which is about 19mm. I did remove and install them a 2nd time but same issue. I have done brakes dozens of times before, it is a straight forward job, but this is strange... Here is the exact parts I bought --> http://www.ebay.com/itm/300880010149...84.m1439.l2649
06-12-2013, 02:28 PM #2
Check out this thread, http://www.gmtruckclub.com/forum/sho...nt-Disc-Brakes , It is for the front brakes but, they are basically the same. Maybe the rotors and pads are at the top end of the thickness spec or over. So, even if they do release they are still dragging. You also need to be sure that the pads are moving freely in the mounting clips and that your rotor is held straight during the install of the pads. If you don't hold the rotor straight then the pads can get cocked and bend
Last edited by Pikey; 06-12-2013 at 02:49 PM.
1995 Silverado 4x4
6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge
2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
2002 Silverado ext cab 2wd (Sold)
2003 Yukon XL (Totaled)
06-12-2013, 06:43 PM #3
I have come across new imported rotors that were just slightly undersize at the center hole, or just oversized on total diameter, causing them to not fit correctly. I may not be stating that clearly, as it has been awhile since I had the problem. But....take off the new rotor and take precise measurements of thickness, overall rotor diameter, actual rotor surface diameter, etc. and compare to same of your old rotor. I will bet there is a mismatch, or bad machining, somewhere.Las Vegas, NV...2001 Silverado 1500 LT Z71 Stepside X-cab, 171,000 miles, 5.3, cat-back duals, leveling kit, 3.73, 17" rims, more to come...
06-13-2013, 01:24 PM #4
with the old and new flat to the ground see how they are different in size and off set.
also make sure the park brake drum is correct and the same.
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