Sticky Rear Drum Brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sams 68 · 04-24-2002, 05:07 PM

This makes Two trucks in a row that I have had trouble with the drivers side rear brake dragging. Any one else??? Any suggestions would be Great!!! Thanks Sams 68

bigvinnie · 04-24-2002, 06:07 PM

could be build-up of gunk in your wheel cylinder preventing the cup/plunger from returning after you apply the brakes. Could also be weak brake shoe return springs...

I'd replace the wheel cylinder and put in a new brake spring kit... might as well do both sides so they're both fresh, can't hurt...

could also be improperly adjusted e-brake cable as well....

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'72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA
http://www.ixpres.com/vlusardi/chevtrk.htm

[This message has been edited by bigvinnie (edited April 24, 2002).]

bobs409 · 04-25-2002, 06:48 AM

Join the club!

My '69 definetly wears the driver side more than the other side and I used to have problems with it locking up after a nice ride. I have replaced parking brake cables, even replace the driver side twice. I put in new springs twice. I too am at a loss as to what's causing this. Last year I had to swap my brake shoes side to side to get some decent mileage out of them.

I used to have a '69 4X4 Blazer that did the same thing.

If you raise the tire off the ground, the brakes feel free. ????????????????????

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63 Impala*66 Chevelle SS*69 Chevelle*69 C10 Stepside*71 Cheyenne 20*72 Chevelle

Parts for sale:
http://www.angelfire.com/trek/mr409/items4sale.html

BubbaGreen · 04-25-2002, 08:45 AM

check the little 'star' adjustment wheel,
if the teeth are worn, it will over adjust
make the lines wear. the thing is at the
bottom between the shoes.

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71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73
See it at www.prismnet.com/~grzanich

1-PU70 · 04-25-2002, 10:05 AM

I think if the teeth on the star adjuster were worn that would cause the shoes to back off. I would say that eather they are over adjusted or you have groves in the backing plate where the shoes ride

04-24-2002, 05:07 PM	#1
Sams 68 Registered User Join Date: Jun 2001 Location: Mont. Al. Posts: 30	Sticky Rear Drum Brakes This makes Two trucks in a row that I have had trouble with the drivers side rear brake dragging. Any one else??? Any suggestions would be Great!!! Thanks Sams 68

04-24-2002, 06:07 PM	#2
bigvinnie Registered User Join Date: Aug 2001 Location: escondido, ca 92026 Posts: 1,222	could be build-up of gunk in your wheel cylinder preventing the cup/plunger from returning after you apply the brakes. Could also be weak brake shoe return springs... I'd replace the wheel cylinder and put in a new brake spring kit... might as well do both sides so they're both fresh, can't hurt... could also be improperly adjusted e-brake cable as well.... ------------------ '72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA http://www.ixpres.com/vlusardi/chevtrk.htm [This message has been edited by bigvinnie (edited April 24, 2002).] __________________ '72 short step, 350, 700R4, tilt, ps, pdb, a/c, lowered coils, etc., other work in progress... San Diego, CA 72 Stepside Project

04-25-2002, 06:48 AM	#3
bobs409 1969 Custom 30 wrecker Join Date: Sep 2001 Location: Pottsville, Pa Posts: 2,611	Join the club! My '69 definetly wears the driver side more than the other side and I used to have problems with it locking up after a nice ride. I have replaced parking brake cables, even replace the driver side twice. I put in new springs twice. I too am at a loss as to what's causing this. Last year I had to swap my brake shoes side to side to get some decent mileage out of them. I used to have a '69 4X4 Blazer that did the same thing. If you raise the tire off the ground, the brakes feel free. ???????????????????? ------------------ 63 Impala66 Chevelle SS69 Chevelle69 C10 Stepside71 Cheyenne 20*72 Chevelle Parts for sale: http://www.angelfire.com/trek/mr409/items4sale.html __________________ Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10

04-25-2002, 08:45 AM	#4
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	check the little 'star' adjustment wheel, if the teeth are worn, it will over adjust make the lines wear. the thing is at the bottom between the shoes. ------------------ 71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73 See it at www.prismnet.com/~grzanich __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich

04-25-2002, 10:05 AM	#5
1-PU70 Registered User Join Date: Apr 2000 Location: Bradenton, FL Posts: 1,036	I think if the teeth on the star adjuster were worn that would cause the shoes to back off. I would say that eather they are over adjusted or you have groves in the backing plate where the shoes ride __________________ 1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters



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