problem with brakes '83 K10 14bff - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nikwho · 01-03-2011, 10:11 PM

Sorry for the double post mods, can you delete the other post in the 73-87 section. I was not getting any responses there.

I have an '83 K10 with 3/4 ton axles swapped under it. Its got a corporate 10 bolt in the front and a 14 bolt full floater in the rear w/ drum brakes. I was told that the axles were from a "comparable year" 3/4 ton truck. Truck was as is when I bought it. I am assuming that it has the stock K10 proportioning valve. My problem is that my rear brakes will lock up very easily with what feels like very little if no braking to the front. has, a couple of times, stalled the engine while braking in gear traveling at 20-30mph. Even with just the slightest push of the brake pedal. Makes for some interesting driving characteristics! Its a nightmare(ok, sometimes kind of fun) in the snow! Any thoughts? I was thinking that maybe its a proportioning valve issue. Thanks for the help guys
Nik

Chevy1TonFun · 01-03-2011, 10:25 PM

Forgive with starting with the basics. Have you adjusted the rear brakes? Also is there any oil leaking into the drums?

nikwho · 01-03-2011, 10:27 PM

no problem. sometimes I skip the most basic steps. Yes, they have been adjusted. I will need to pull them apart to see if there is any oil leaking into the drums. I will start with that and report back. Thank you

cur88alan · 01-05-2011, 02:08 PM

i would make sure they havent been adjusted to much did that once had the same problem i would try releasing them a few clicks and see what happens

Chevy1TonFun · 01-05-2011, 09:27 PM

I would try backing the brakes off first before pulling the drums. 3/4 ton axles are a pain in the a$$ to pull drums.

Blue Chevy 1987 · 01-05-2011, 09:45 PM

yea sounds to me like they are adjusteed too tight or have oil leaking in drums. im running your exact set up but i converted to rear disc. i have no problems stopping. no upgraded master cylinder or valve. also check an make sure you dont have a vacuum leak specially around the brake booster

**special-K** · 01-06-2011, 10:53 AM

Full floating rears have a tendency to leak from the seals on the back of the drum which makes the brakes grab bad. They can stick when the e-brake is left on. You mostly notice this when it's wet outside.

01-03-2011, 10:11 PM	#1
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	problem with brakes '83 K10 14bff Sorry for the double post mods, can you delete the other post in the 73-87 section. I was not getting any responses there. I have an '83 K10 with 3/4 ton axles swapped under it. Its got a corporate 10 bolt in the front and a 14 bolt full floater in the rear w/ drum brakes. I was told that the axles were from a "comparable year" 3/4 ton truck. Truck was as is when I bought it. I am assuming that it has the stock K10 proportioning valve. My problem is that my rear brakes will lock up very easily with what feels like very little if no braking to the front. has, a couple of times, stalled the engine while braking in gear traveling at 20-30mph. Even with just the slightest push of the brake pedal. Makes for some interesting driving characteristics! Its a nightmare(ok, sometimes kind of fun) in the snow! Any thoughts? I was thinking that maybe its a proportioning valve issue. Thanks for the help guys Nik __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-03-2011, 10:25 PM	#2
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: problem with brakes '83 K10 14bff Forgive with starting with the basics. Have you adjusted the rear brakes? Also is there any oil leaking into the drums? __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

01-03-2011, 10:27 PM	#3
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: problem with brakes '83 K10 14bff no problem. sometimes I skip the most basic steps. Yes, they have been adjusted. I will need to pull them apart to see if there is any oil leaking into the drums. I will start with that and report back. Thank you __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-05-2011, 02:08 PM	#4
cur88alan Registered User Join Date: Oct 2010 Location: Fresno Ca Posts: 35	Re: problem with brakes '83 K10 14bff i would make sure they havent been adjusted to much did that once had the same problem i would try releasing them a few clicks and see what happens

01-05-2011, 09:27 PM	#5
Chevy1TonFun Grease Monkey Join Date: Oct 2007 Location: Fresno CA Posts: 750	Re: problem with brakes '83 K10 14bff I would try backing the brakes off first before pulling the drums. 3/4 ton axles are a pain in the a$$ to pull drums. __________________ Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax Ultimate Offroad Build: 1978 Chevy Silverado K30 Crewcab Build Link http://67-72chevytrucks.com/vboard/s...d.php?t=654053 Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs FOR SALE http://67-72chevytrucks.com/vboard/c...ton-4x4&cat=12

01-05-2011, 09:45 PM	#6
Blue Chevy 1987 Registered User Join Date: Aug 2010 Location: Virginia Beach, VA Posts: 64	Re: problem with brakes '83 K10 14bff yea sounds to me like they are adjusteed too tight or have oil leaking in drums. im running your exact set up but i converted to rear disc. i have no problems stopping. no upgraded master cylinder or valve. also check an make sure you dont have a vacuum leak specially around the brake booster

01-06-2011, 10:53 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: problem with brakes '83 K10 14bff Full floating rears have a tendency to leak from the seals on the back of the drum which makes the brakes grab bad. They can stick when the e-brake is left on. You mostly notice this when it's wet outside. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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