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05-26-2015, 03:02 PM
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#1 |
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Registered User
Join Date: Jul 2010
Location: high river ab
Posts: 127
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locked brake caliper
Sorry for the long post but want to be thorough.
Working on the front disc brakes on my son's '77 C20. Truck had a squeal when braking so we've taken it apart to inspect. C-clamped the piston to release and Rotors look new (he just bought the truck) so we thought we'd just swap out the pads. Replaced with new Raybestos pads, rotor turned nicely while cleaning up, pumped the brake pedal and the caliper locked up. What have I done and how do I release it? Second part. New pads came with metal shims (to supposedly stop shudder?) but the pads will only fit w/o the shims. Any problem installing this way?
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'72 Highlander '88 GMC Sierra 1500 '14 Chevy Silverado 2500HD Duramax |
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05-26-2015, 03:56 PM
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#2 |
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Registered User
Join Date: Jul 2011
Location: WV
Posts: 946
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Re: locked brake caliper
Several things possible. I will work with one of them. Pull that wheel and crack the bleeder, then try to push the piston back in. If it pushes, replace the brake hose. This happened to me before. Had one lock tight enough that I had to put it in 4wheel low just to move in the yard. The inner liner had deteriorated and acted like a flap.
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72 GMC C2500 402/Th400 first truck (still have) 77 GMC C3500 CC dually Sold  70 C50 dump truck "Rusty" 87 K10 Suburban Sold 93 K2500 xcab 6.5TD 96 GMC K2500 Suburban 6.5 TD |
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05-26-2015, 04:03 PM
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#3 |
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Registered User
Join Date: Oct 2014
Location: Spearfish South Dakota
Posts: 407
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Re: locked brake caliper
The piston push in a lot farther than you would think. I work for a transit company mostly fords .but pays the bills it amazes me even after a turned rotor that the pistons have to be in all the way with new pads.
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83 c10 long Box Daily Driver 90 Jimmy parked 98 Road King/ 06 Road Glide In memorium 63 impala SS/ 65 Chevy Panel 65 GMC Short Box/ 68 Camero |
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