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#1 |
Senior Member
![]() Join Date: Jul 2012
Location: Knoxville, TN
Posts: 499
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Grabbing Rear Brake on '71
The rear passenger-side shoe on my '71 is grabbing under braking and locks up well before the other wheels. It also grabs some while the truck is not under braking. I pulled the drum off and the wheel cylinder it not leaking and the shoes are still in intact. Could it simply be that the shoes need to be backed off a little?
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1971 Chevy C10 Cheyenne (sold for Mazda) 1963 Chevy Corvair Pro-Touring Project 2012 Mazda 3 i Sport sedan http://www.dracoautodesigns.com/ |
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#2 |
Senior Member
![]() Join Date: Jul 2012
Location: Knoxville, TN
Posts: 499
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Re: Grabbing Rear Brake on '71
I backed the shoes back a little, and it seems to have fixed it. The truck is still braking straight so I will see what happens.
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1971 Chevy C10 Cheyenne (sold for Mazda) 1963 Chevy Corvair Pro-Touring Project 2012 Mazda 3 i Sport sedan http://www.dracoautodesigns.com/ |
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#3 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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That would be my first thing to try. Take the wheels off both sides and see if the passenger side is harder to turn by hand, if so then back it off until they both feel the same. No wrenches on them just use your hands.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#4 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Grabbing Rear Brake on '71
i'd check the selfadjusters(the starwheels) to see that they are both free and turn easily
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#5 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
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Re: Grabbing Rear Brake on '71
Have you to used your e-brake lately? It could be hanging up on one side. You could have a out of round drum also (warped).
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68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member). |
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#6 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Grabbing Rear Brake on '71
I've had a couple of my truck do that in the last few years. On my 68, it got to the point where I was scaring the hell out of people at stop lights if I had to make a sudden stop. It's embarrassing when every one stops and stares at you. Found out my shoes were glazed over so I replaced all the shoes and turned the drums. Also, while I was at it, did a complete job and bought all new cylinders, hoses and spring kits.
On my other truck it was the left front disc brake that would first start make a rattling noise and then grab. Turned out to be a bad spot on the shoe. While I was at it, I replaced the rotor also just in case.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#7 |
Senior Member
![]() Join Date: Jul 2012
Location: Knoxville, TN
Posts: 499
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Re: Grabbing Rear Brake on '71
I hadn't thought of it being glazed over. I did have to use the e-brake a couple days ago, I try not to use it. That could of triggered the problem.
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1971 Chevy C10 Cheyenne (sold for Mazda) 1963 Chevy Corvair Pro-Touring Project 2012 Mazda 3 i Sport sedan http://www.dracoautodesigns.com/ |
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#8 | |
Active Member
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Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Grabbing Rear Brake on '71
Quote:
One thing that you may want to consider is the rubber brake hose going to the rear brakes on top of the rear axle. It may be starting to collapse internally on you and allowing more fluid to one brake. If it's never been replaced, old, or you're not sure, I'd replace it anyway.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#9 |
Senior Member
![]() Join Date: Jul 2012
Location: Knoxville, TN
Posts: 499
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Re: Grabbing Rear Brake on '71
I don't usually use my e-brake because I had an issue with it getting stuck anytime it was engaged and sat for a couple hours. It would go back to normal as soon as it heated back up. It probably needs to just be replaced but its low on the list since this is my dd.
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1971 Chevy C10 Cheyenne (sold for Mazda) 1963 Chevy Corvair Pro-Touring Project 2012 Mazda 3 i Sport sedan http://www.dracoautodesigns.com/ |
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#10 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Grabbing Rear Brake on '71
Quote:
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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