Front Drum Brakes. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sinister · 12-23-2009, 06:38 PM

Getting ready to do the front drum brakes on my '69 C-20, though I'm very tempted to just take it in. I hate doing drum brakes. The Chassis Service manual mentions a gasket between the drum and hub, any idea where to get this gasket, and what's it called?

Lugnut64052 · 12-24-2009, 07:12 PM

bump.

Curious to know the answer to this, and what its function is. I've done a bazillion sets of rear brakes on everything from Corollas to school buses but never a pre-70s front drum vehicle (that I can recall anyway). No rear drum vehicle I ever did had a gasket between the drum and a hub.

Sinister · 12-24-2009, 07:39 PM

Never had to do front drums either. Maybe somebody who knows will chime in.

oldblue1968chevy · 12-24-2009, 11:47 PM

good time for disc swap lol

weekendracer728 · 12-25-2009, 09:01 AM

you talking on a two wheel drive??

there is a seal on the inside of the drum to keep dirt out of the bearings

Sinister · 12-25-2009, 09:41 AM

Two wheel drive. I have the seals on order. The Chassis Service Manual mentions a gasket between drum and hub. I'd like to swap to disks, just not in the budget for now,

*2tons of fun* · 12-30-2009, 12:07 AM

sure it is, find a beater 73+ for as dirt cheap as you can. most of the time you can get roller frames for free .

swap out the whole package, take the pos to the scraper, you brake job was now free.

Sinister · 12-30-2009, 10:30 AM

Quote:

Originally Posted by 2tons of fun

sure it is, find a beater 73+ for as dirt cheap as you can. most of the time you can get roller frames for free .

swap out the whole package, take the pos to the scraper, you brake job was now free.

Will this work for a 3/4 ton?

**DPowers** · 12-30-2009, 10:48 AM

R U talking about where the backing plate fits over the spindle? When I recently did the front drums on my '66 C10, I just ran a small bead of Permatex around it.

Sinister · 12-30-2009, 10:54 AM

Supposed to be between the drum and hub. Might just hit it with RTV.

**N2TRUX** · 12-30-2009, 12:01 PM

Quote:

Originally Posted by Sinister

Will this work for a 3/4 ton?

Yes.

Sinister · 12-30-2009, 02:54 PM

Quote:

Originally Posted by N2TRUX

Yes.

Good to know, although I just sprang for all new parts for the drum brakes, so it'll have to wait for a bit.

*2tons of fun* · 12-30-2009, 03:16 PM

then take em back.

Sinister · 12-30-2009, 03:39 PM

Quote:

Originally Posted by 2tons of fun

then take em back.

Nah, I'm just going to redo the drums and then hunt down the stuff to go to disc brakes in the future. Just don't have the time right now to find the parts and rip the truck apart. 3/4 ton drum brakes actually stop pretty well.

rockdawg · 12-31-2009, 11:28 AM

I've noticed this gasket you are talking about. I recently pulled a front hub (2 wd) off a GMC in the junk yard and noticed the remains of a gasket material between the hub and brake drum. There was not much left of it so I just scraped it off. Maybe it was for some kind of "anti chatter" fix for vibration or something?

Sinister · 12-31-2009, 11:32 AM

Quote:

Originally Posted by rockdawg

I've noticed this gasket you are talking about. I recently pulled a front hub (2 wd) off a GMC in the junk yard and noticed the remains of a gasket material between the hub and brake drum. There was not much left of it so I just scraped it off. Maybe it was for some kind of "anti chatter" fix for vibration or something?

See, I'm not crazy. LOL. I think I'll just hit it with some RTV and call it good.

Lugnut64052 · 12-31-2009, 11:36 AM

Quote:

Originally Posted by rockdawg

I've noticed this gasket you are talking about. I recently pulled a front hub (2 wd) off a GMC in the junk yard and noticed the remains of a gasket material between the hub and brake drum. There was not much left of it so I just scraped it off. Maybe it was for some kind of "anti chatter" fix for vibration or something?

I figured that's what it might be as well, or to control brake dust from blowing out on to the hubcap, or whatever. It's probably not a big deal if it's missing.

12-23-2009, 06:38 PM	#1
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Front Drum Brakes. Getting ready to do the front drum brakes on my '69 C-20, though I'm very tempted to just take it in. I hate doing drum brakes. The Chassis Service manual mentions a gasket between the drum and hub, any idea where to get this gasket, and what's it called? __________________ Beat it to fit, Paint it to match... Last edited by Sinister; 12-23-2009 at 06:38 PM.

12-24-2009, 07:12 PM	#2
Lugnut64052 Middle-aged Curmudgeon Join Date: Jun 2008 Location: Independence, MO Posts: 753	Re: Front Drum Brakes. bump. Curious to know the answer to this, and what its function is. I've done a bazillion sets of rear brakes on everything from Corollas to school buses but never a pre-70s front drum vehicle (that I can recall anyway). No rear drum vehicle I ever did had a gasket between the drum and a hub. __________________ Bret Check out the site's Truck Tech FAQ. Be a site supporter. My more-or-less pathetic build thread. Board members I've met: ------------------------------ Longhorn Man Dieselwrencher jholley big mike71

12-24-2009, 07:39 PM	#3
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Front Drum Brakes. Never had to do front drums either. Maybe somebody who knows will chime in. __________________ Beat it to fit, Paint it to match...

12-24-2009, 11:47 PM	#4
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: Front Drum Brakes. good time for disc swap lol __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

12-25-2009, 09:01 AM	#5
weekendracer728 Registered User Join Date: Aug 2009 Location: New Prague, MN Posts: 103	Re: Front Drum Brakes. you talking on a two wheel drive?? there is a seal on the inside of the drum to keep dirt out of the bearings

12-25-2009, 09:41 AM	#6
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Front Drum Brakes. Two wheel drive. I have the seals on order. The Chassis Service Manual mentions a gasket between drum and hub. I'd like to swap to disks, just not in the budget for now, __________________ Beat it to fit, Paint it to match...

12-30-2009, 12:07 AM	#7
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Front Drum Brakes. sure it is, find a beater 73+ for as dirt cheap as you can. most of the time you can get roller frames for free . swap out the whole package, take the pos to the scraper, you brake job was now free.

12-30-2009, 10:48 AM	#9
DPowers One foot in front of the other Join Date: Aug 2008 Location: Parrottsville, TN Posts: 5,439	Re: Front Drum Brakes. R U talking about where the backing plate fits over the spindle? When I recently did the front drums on my '66 C10, I just ran a small bead of Permatex around it.

12-30-2009, 10:54 AM	#10
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Front Drum Brakes. Supposed to be between the drum and hub. Might just hit it with RTV. __________________ Beat it to fit, Paint it to match...

12-30-2009, 03:16 PM	#13
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Front Drum Brakes. then take em back.

12-31-2009, 11:28 AM	#15
rockdawg Registered User Join Date: Dec 2007 Location: Conyers, Ga Posts: 27	Re: Front Drum Brakes. I've noticed this gasket you are talking about. I recently pulled a front hub (2 wd) off a GMC in the junk yard and noticed the remains of a gasket material between the hub and brake drum. There was not much left of it so I just scraped it off. Maybe it was for some kind of "anti chatter" fix for vibration or something? __________________ '69 Chevy CST 383 Stroker TH400 Last edited by rockdawg; 12-31-2009 at 11:29 AM.



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