Question About Brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67Step · 05-01-2011, 09:37 AM

When I apply the brakes on my 85 chevy truck the driver's side rear tire locks up. If push on the brakes easy the tire will not lock up. What do you think is causing this? Thanks in advance.

**N2TRUX** · 05-01-2011, 10:06 AM

Check that wheel for signs of fluid leaks. Its possible you have a leaky wheel cylinder.

mooseknuckles · 05-01-2011, 11:11 AM

mine does the same thing! seems to do it more in the mornings tho... I'll have a look at it soon, as I'll be ripping them off for good!

Rons86 · 05-02-2011, 02:32 PM

Had a friends truck doing the same thing a few years ago (except the passengers side was locking up.) Turned out the drivers side parking brake cable was frozen up and not letting the drivers side brake work properly. Just something to check on.

1425956 · 05-04-2011, 07:41 PM

I just recent;y fixed the same problem I was having with my truck. There rear drums would lock up once the pedal was pushed to a certain point, or if I pressed the brakes very quickly. Turns out both my wheel cylinders were leaking and the brake hardware was rusted pretty bad. I turned my drums, new brake shoes, new wheel cylinders and an all-in-one kit to replace rusted springs, etc... Brakes work perfectly now. Hope this helps.

67Step · 05-04-2011, 09:21 PM

Thanks. Hopefully I get to tear into it tomorrow and see what the problem is. Thanks for your comments. I will post after I check it out and find the problem. It is just the drivers side back tire doing it. But of course will check them both.

Eyegore · 05-04-2011, 09:22 PM

You might try bleeding the system first, those little bubbles do strange things, same thing happened to my 86, bled the system and everything was fine.

67Step · 05-06-2011, 07:54 AM

N2Trux you hit the nail on the head. Pulled the hub off the truck and found that the wheel cylinder was leaking and had covered everything. Brake shoes were coming apart and real sticky. Took the passenger side apart and found the other side was also leaking but not as bad. Changed it all out. Went to put new wheels and tires on the truck and found I needed front brakes also. So the old truck got new brakes all the way around. Brakes working good now. Thanks for all your info and comment. Just another reason to be a member of this GREAT site.

67Step · 05-06-2011, 08:14 AM

Trying to post a picture here.

67Step · 05-07-2011, 04:34 PM

I guess it worked. I see it. LOL!!

05-01-2011, 09:37 AM	#1
67Step Registered User Join Date: Feb 2007 Location: Anna, IL Posts: 127	Question About Brakes When I apply the brakes on my 85 chevy truck the driver's side rear tire locks up. If push on the brakes easy the tire will not lock up. What do you think is causing this? Thanks in advance. __________________ 1967 Chevy Shortbed, 454 CI, 700R4, currently work in progress. Check out the build up at http://www.cardomain.com/ride/2933497/1. http://67-72chevytrucks.com/vboard/s...d.php?t=264458 1956 Chevy 3100 4x4 Stepside Truck. Sitting on Tahoe frame with LS motor.

05-01-2011, 10:06 AM	#2
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: Question About Brakes Check that wheel for signs of fluid leaks. Its possible you have a leaky wheel cylinder. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

05-01-2011, 11:11 AM	#3
mooseknuckles Registered User Join Date: Sep 2009 Location: ottawa,canada Posts: 4,550	Re: Question About Brakes mine does the same thing! seems to do it more in the mornings tho... I'll have a look at it soon, as I'll be ripping them off for good! __________________ my build threads '86 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415628 '67 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=635078 '63 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=674682

05-02-2011, 02:32 PM	#4
Rons86 Registered User Join Date: Sep 2008 Location: Holt, Missouri Posts: 94	Re: Question About Brakes Had a friends truck doing the same thing a few years ago (except the passengers side was locking up.) Turned out the drivers side parking brake cable was frozen up and not letting the drivers side brake work properly. Just something to check on.

05-04-2011, 07:41 PM	#5
1425956 Registered User Join Date: Mar 2011 Location: Joplin, MO Posts: 161	Re: Question About Brakes I just recent;y fixed the same problem I was having with my truck. There rear drums would lock up once the pedal was pushed to a certain point, or if I pressed the brakes very quickly. Turns out both my wheel cylinders were leaking and the brake hardware was rusted pretty bad. I turned my drums, new brake shoes, new wheel cylinders and an all-in-one kit to replace rusted springs, etc... Brakes work perfectly now. Hope this helps. __________________ Jeremy I have done so much, for so long, with so little, I can do anything with nothing! 1984 GMC Sierra Classic-1/2 ton-SWB (R.I.P.) 1986 GMC Suburban 3/4 ton 4x4 2014 GMC Sierra LTZ Z-71 Crew SWB

05-04-2011, 09:21 PM	#6
67Step Registered User Join Date: Feb 2007 Location: Anna, IL Posts: 127	Re: Question About Brakes Thanks. Hopefully I get to tear into it tomorrow and see what the problem is. Thanks for your comments. I will post after I check it out and find the problem. It is just the drivers side back tire doing it. But of course will check them both. __________________ 1967 Chevy Shortbed, 454 CI, 700R4, currently work in progress. Check out the build up at http://www.cardomain.com/ride/2933497/1. http://67-72chevytrucks.com/vboard/s...d.php?t=264458 1956 Chevy 3100 4x4 Stepside Truck. Sitting on Tahoe frame with LS motor.

05-04-2011, 09:22 PM	#7
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: Question About Brakes You might try bleeding the system first, those little bubbles do strange things, same thing happened to my 86, bled the system and everything was fine. __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

05-06-2011, 07:54 AM	#8
67Step Registered User Join Date: Feb 2007 Location: Anna, IL Posts: 127	Re: Question About Brakes N2Trux you hit the nail on the head. Pulled the hub off the truck and found that the wheel cylinder was leaking and had covered everything. Brake shoes were coming apart and real sticky. Took the passenger side apart and found the other side was also leaking but not as bad. Changed it all out. Went to put new wheels and tires on the truck and found I needed front brakes also. So the old truck got new brakes all the way around. Brakes working good now. Thanks for all your info and comment. Just another reason to be a member of this GREAT site. __________________ 1967 Chevy Shortbed, 454 CI, 700R4, currently work in progress. Check out the build up at http://www.cardomain.com/ride/2933497/1. http://67-72chevytrucks.com/vboard/s...d.php?t=264458 1956 Chevy 3100 4x4 Stepside Truck. Sitting on Tahoe frame with LS motor.

05-06-2011, 08:14 AM	#9
67Step Registered User Join Date: Feb 2007 Location: Anna, IL Posts: 127	Re: Question About Brakes Trying to post a picture here. __________________ 1967 Chevy Shortbed, 454 CI, 700R4, currently work in progress. Check out the build up at http://www.cardomain.com/ride/2933497/1. http://67-72chevytrucks.com/vboard/s...d.php?t=264458 1956 Chevy 3100 4x4 Stepside Truck. Sitting on Tahoe frame with LS motor. Last edited by 67Step; 05-07-2011 at 04:33 PM.

05-07-2011, 04:34 PM	#10
67Step Registered User Join Date: Feb 2007 Location: Anna, IL Posts: 127	Re: Question About Brakes I guess it worked. I see it. LOL!! __________________ 1967 Chevy Shortbed, 454 CI, 700R4, currently work in progress. Check out the build up at http://www.cardomain.com/ride/2933497/1. http://67-72chevytrucks.com/vboard/s...d.php?t=264458 1956 Chevy 3100 4x4 Stepside Truck. Sitting on Tahoe frame with LS motor. Last edited by 67Step; 05-07-2011 at 04:34 PM.



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