Parking brake return spring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northerngmc · 05-29-2007, 10:42 PM

1969 GMC 1/2 ton, longbox, drum brakes

When I release the park brake hand the park brake pedal does not pop back to the up position. If I hold the handle out for the return I can push the park brake pedal in and out and the cable seems to be moving freely.

Is there a parking brake return spring? IF so where?

GREASEMONKEY72 · 05-29-2007, 10:51 PM

i think there is, let me go out and look and ill try to snap a decent pic of it for you

GREASEMONKEY72 · 05-29-2007, 11:05 PM

i didnt see a spring on the pedal but theres a return spring for the handle and i didnt see any springs on the cables under the truck either

northerngmc · 05-30-2007, 12:08 AM

HUMMMMM, same here.......

tshaw72low · 05-30-2007, 12:25 AM

The springs on the cables that goes into the drums, are weak, I just replaced both of mine to fix that same problem.. After replacement works fine, break comes all the way back to top.

May want to try that, they are cheap to replace..

northerngmc · 05-30-2007, 10:10 AM

Quote:

Originally Posted by tshaw72low

The springs on the cables that goes into the drums, are weak, I just replaced both of mine to fix that same problem.. After replacement works fine, break comes all the way back to top.

May want to try that, they are cheap to replace..

What did you change? Just the springs or did you purchase rear brake cables?

rlm316 · 05-30-2007, 12:38 PM

The parking brake rear cable is made as a unit with the spring captured in the end. The crimped end of the cable is connected to the arm that is hooked behind the brake shoe, so you will need to disassemble the rear brakes. The cable assembly is connected to the backing plate with either a bolted flange or a self setting spring clip. The other end is connected to the trailing arm with a seperate spring clip. If your cable is floating and not connected to the backing plate, That cable or plate needs to be replaced because it pulled through the opening. If there is tension on the cable it will cause your brakes to drag on that side wearing out your shoes. I just replaced all the cables on my '70 C20 and '85 C10. I think that I paid around $25-$30 ea. for the cables and Advance had them in stock for the '85. The ones for the '70 were higher, I think $35 ea. They were bought at a different store and they were Raybestos cables. Hope this helps, Lane

northerngmc · 05-30-2007, 09:59 AM

So to change these springs you can unhook the brake cables from the shoes and feed it back out through the backing plate?

Also it appears that my left side is not attached or mounted to the backing plate at all. Should there be a clip to attach it to the backing plate?

northerngmc · 05-30-2007, 02:26 PM

Thanks, I will try and order rear cables.

blukangoo · 05-30-2007, 04:55 PM

I just cleaned my handbrake cable today and the return spring is at the end of the cable just before it splits up to the back wheels.
I don´t know how much different the foot brake is to the handbrake.

grayw0lf · 05-31-2007, 09:37 AM

I just put a parking brake on my 70 C-10 & love it. When on the boat ramp, I can shift out of Park w/o that big, awful Clunk!

northerngmc · 06-02-2007, 04:12 PM

I was able to order the rear cables.

They should be in Monday or Tuesday.

How much of the rear brakes do I have to disassemble to change the cables? Do both shoes have to come off?

rlm316 · 06-04-2007, 09:17 AM

It would probably be easier to take them both off.

05-29-2007, 10:42 PM	#1
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Parking brake return spring 1969 GMC 1/2 ton, longbox, drum brakes When I release the park brake hand the park brake pedal does not pop back to the up position. If I hold the handle out for the return I can push the park brake pedal in and out and the cable seems to be moving freely. Is there a parking brake return spring? IF so where? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

05-29-2007, 10:51 PM	#2
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: Parking brake return spring i think there is, let me go out and look and ill try to snap a decent pic of it for you __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

05-29-2007, 11:05 PM	#3
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: Parking brake return spring i didnt see a spring on the pedal but theres a return spring for the handle and i didnt see any springs on the cables under the truck either __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

05-30-2007, 12:08 AM	#4
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Parking brake return spring HUMMMMM, same here....... __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

05-30-2007, 12:25 AM	#5
tshaw72low Registered User Join Date: Apr 2007 Location: East, Tennessee Posts: 54	Re: Parking brake return spring The springs on the cables that goes into the drums, are weak, I just replaced both of mine to fix that same problem.. After replacement works fine, break comes all the way back to top. May want to try that, they are cheap to replace..

05-30-2007, 12:38 PM	#7
rlm316 Registered User Join Date: Aug 2006 Location: Woodstown, NJ Posts: 669	Re: Parking brake return spring The parking brake rear cable is made as a unit with the spring captured in the end. The crimped end of the cable is connected to the arm that is hooked behind the brake shoe, so you will need to disassemble the rear brakes. The cable assembly is connected to the backing plate with either a bolted flange or a self setting spring clip. The other end is connected to the trailing arm with a seperate spring clip. If your cable is floating and not connected to the backing plate, That cable or plate needs to be replaced because it pulled through the opening. If there is tension on the cable it will cause your brakes to drag on that side wearing out your shoes. I just replaced all the cables on my '70 C20 and '85 C10. I think that I paid around $25-$30 ea. for the cables and Advance had them in stock for the '85. The ones for the '70 were higher, I think $35 ea. They were bought at a different store and they were Raybestos cables. Hope this helps, Lane

05-30-2007, 09:59 AM	#8
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Parking brake return spring So to change these springs you can unhook the brake cables from the shoes and feed it back out through the backing plate? Also it appears that my left side is not attached or mounted to the backing plate at all. Should there be a clip to attach it to the backing plate? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

05-30-2007, 02:26 PM	#9
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Parking brake return spring Thanks, I will try and order rear cables. __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

05-30-2007, 04:55 PM	#10
blukangoo Neighborhood Pickle Slinger Join Date: Jan 2007 Location: Cadolzburg, Bavaria, Germany Posts: 2,224	Re: Parking brake return spring I just cleaned my handbrake cable today and the return spring is at the end of the cable just before it splits up to the back wheels. I don´t know how much different the foot brake is to the handbrake. Attached Images __________________ -------------------------------------------------- My C10 Diary Our cars: 1966 Chevrolet Chevelle 396 - TH350 1968 Chevrolet C10/CST 327 TH400/375 1969 Corvette Stingray 350 - Muncie Manual Trans 1969 Chevrolet ElCamino 350 - TH400 1970 Cutlass Supreme Convertible - 350 Rocket - TH350 1973 Camaro LT - New Engine Done - TH350 1973 Corvette Convertible 454 - TH400

05-31-2007, 09:37 AM	#11
grayw0lf Registered User Join Date: Apr 2004 Location: Clanton, AL Posts: 1,253	Re: Parking brake return spring I just put a parking brake on my 70 C-10 & love it. When on the boat ramp, I can shift out of Park w/o that big, awful Clunk! __________________ 85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days! 05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal!

06-02-2007, 04:12 PM	#12
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Parking brake return spring I was able to order the rear cables. They should be in Monday or Tuesday. How much of the rear brakes do I have to disassemble to change the cables? Do both shoes have to come off? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

06-04-2007, 09:17 AM	#13
rlm316 Registered User Join Date: Aug 2006 Location: Woodstown, NJ Posts: 669	Re: Parking brake return spring It would probably be easier to take them both off.



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