2008 rear drum brake squeal is NORMAL...?

BusMaster007 · 02-12-2009, 02:25 PM

I searched for 'brake squeal' and the threads were fairly old, so I'm posting about a 2008 truck.
The dealer says it's normal...you gotta be kidding.

What's the fix for REAR brake squeal?

rangerbob · 02-12-2009, 03:10 PM

It'll go away after a bit.

stocklook · 02-12-2009, 03:30 PM

I just had mine cleaned and adjusted (07 21k) and it fixed the squeal on mine.

my ebrake seem tighter now.

BusMaster007 · 02-12-2009, 03:39 PM

It has 15,000 miles on it.
How much longer is 'a bit'...? :D

Blaster · 02-12-2009, 03:46 PM

Yes dust builds up in them and they get noise.

I just pull the drums clean them off and it is all good again.

BusMaster007 · 02-12-2009, 04:03 PM

I'm baffled as to why I would need to pull my brake drums off of the back of my 2008 truck when I NEVER had to do that with a 1964 Pontiac that had drums on all 4 corners and never squealed like this truck does.
You can see my point, I'm sure.

Is the brake material different or is there some reason the dust isn't evacuated from the inside and therefore causes the noise.
Really. It IS annoying and sometimes gets strange looks when a brand new truck sounds like the wheels are coming off when coming to a stop.

ssgjurista · 02-12-2009, 04:47 PM

The friction materials have changed some over the years and so has the iron alloys used to cast the brake drums. The gap between the drum and backing plate doesn't allow for alot of air or water flow to keep the dust cleaned out. So the dust accumulates. In years past this dust was corrosive to the backing plate, brake springs, etc. So I got in the habit of pulling the drums off at every tire rotation and cleaning eveything up.

BusMaster007 · 02-12-2009, 06:01 PM

Cool.
It's due for the Discount Tire free rotation inspection anyway.
I'll ask them to do that when they service the truck.
Excellent.
Thanks.

jay15892 · 02-12-2009, 07:26 PM

mine is a 08 with 3600 miles on it and the rear brakes squeek for the first few blocks then go away. i am thinking about taking it in to have it checked...

BR29 · 02-12-2009, 08:01 PM

Mine is an 08 with 6500 miles on it, does what jays does. After 2 or 3 times stopping it goes away. If it is dust, then I understand. I live in West Virginia so the coal trucks keep it dusty here.

02-12-2009, 02:25 PM	#1 (permalink)
BusMaster007 Member Join Date: Nov 2007 Location: Upper Left Coast Posts: 91	2008 rear drum brake squeal is NORMAL...? I searched for 'brake squeal' and the threads were fairly old, so I'm posting about a 2008 truck. The dealer says it's normal...you gotta be kidding. What's the fix for REAR brake squeal? __________________ SLT...the only thing missing is "U". 2008 GMC CANYON SLT Z-71

02-12-2009, 03:10 PM	#2 (permalink)
rangerbob Senior Member Join Date: Sep 2004 Location: Germantown, Maryland Posts: 9,570	Re: 2008 rear drum brake squeal is NORMAL...? It'll go away after a bit. __________________ 05 Canyon EC SLE - I5M Z71 GT4 V1 \| FRAM Boost+RamAir \| LED + HAW Strobes \| BFG 33-12.5-15 Rancho \| Bubaloo Skidz \| MBRP Dumped System Cat Gut\| 3 x Lightforce Blitz \| eFan \| PCMforless <- very unhappy 1.5" TB/AAL/1" BL \| Fold-A-Cover \| Line-X OTR \| Brake Box

02-12-2009, 03:30 PM	#3 (permalink)
stocklook Senior Member Join Date: Dec 2007 Location: NRH Texas Posts: 1,075	Re: 2008 rear drum brake squeal is NORMAL...? I just had mine cleaned and adjusted (07 21k) and it fixed the squeal on mine. my ebrake seem tighter now. __________________ David, I'll keep my money and guns, you keep your "change" 07 CC LT1 4x2 I5 Ruby Red: Team Red. TOTW Winner #30 08 Diamondback Peak Hardtail Gun Toting American Club Member #50

02-12-2009, 03:39 PM	#4 (permalink)
BusMaster007 Member Join Date: Nov 2007 Location: Upper Left Coast Posts: 91	Re: 2008 rear drum brake squeal is NORMAL...? It has 15,000 miles on it. How much longer is 'a bit'...? :D __________________ SLT...the only thing missing is "U". 2008 GMC CANYON SLT Z-71

02-12-2009, 03:46 PM	#5 (permalink)
Blaster Senior Member Join Date: Jul 2005 Location: Windsor Canada Posts: 480	Re: 2008 rear drum brake squeal is NORMAL...? Yes dust builds up in them and they get noise. I just pull the drums clean them off and it is all good again. __________________ Newbi

02-12-2009, 04:03 PM	#6 (permalink)
BusMaster007 Member Join Date: Nov 2007 Location: Upper Left Coast Posts: 91	Re: 2008 rear drum brake squeal is NORMAL...? I'm baffled as to why I would need to pull my brake drums off of the back of my 2008 truck when I NEVER had to do that with a 1964 Pontiac that had drums on all 4 corners and never squealed like this truck does. You can see my point, I'm sure. Is the brake material different or is there some reason the dust isn't evacuated from the inside and therefore causes the noise. Really. It IS annoying and sometimes gets strange looks when a brand new truck sounds like the wheels are coming off when coming to a stop. __________________ SLT...the only thing missing is "U". 2008 GMC CANYON SLT Z-71

02-12-2009, 04:47 PM	#7 (permalink)
ssgjurista Senior Member Join Date: Oct 2006 Location: Fort Carson, CO Posts: 6,410	Re: 2008 rear drum brake squeal is NORMAL...? The friction materials have changed some over the years and so has the iron alloys used to cast the brake drums. The gap between the drum and backing plate doesn't allow for alot of air or water flow to keep the dust cleaned out. So the dust accumulates. In years past this dust was corrosive to the backing plate, brake springs, etc. So I got in the habit of pulling the drums off at every tire rotation and cleaning eveything up. __________________ 2005 Z71 LS Crew Cab 4X4 L52, 4L60E, GT4, Silver Birch Metallic MAXX Shackles: http://www.355nation.net/forum/suspe...here-here.html MAXX Cam JR Lift Kit for 4X4 & 2WD Z71: http://www.355nation.net/forum/suspe...ering-kit.html MAXX Stak Lift Kit for 2WD: http://www.355nation.net/forum/suspe...t-numbers.html PerforMAXX Body Lift: http://www.355nation.net/forum/suspe...y-spacers.html

02-12-2009, 06:01 PM	#8 (permalink)
BusMaster007 Member Join Date: Nov 2007 Location: Upper Left Coast Posts: 91	Re: 2008 rear drum brake squeal is NORMAL...? Cool. It's due for the Discount Tire free rotation inspection anyway. I'll ask them to do that when they service the truck. Excellent. Thanks. __________________ SLT...the only thing missing is "U". 2008 GMC CANYON SLT Z-71

02-12-2009, 07:26 PM	#9 (permalink)
jay15892 Member Join Date: Sep 2008 Location: Anchorage, AK Posts: 70	Re: 2008 rear drum brake squeal is NORMAL...? mine is a 08 with 3600 miles on it and the rear brakes squeek for the first few blocks then go away. i am thinking about taking it in to have it checked... __________________ 08 GMC Canyon, 3.7 liter I-5, Z71 EC, G80, Sunroof, Fire Red, Loaded. 1.5" shackle/TB lift with 09 17" Z71 Chrome rims.

02-12-2009, 08:01 PM	#10 (permalink)
BR29 Senior Member Join Date: Aug 2008 Location: Fayette County, West Virginia Posts: 198	Re: 2008 rear drum brake squeal is NORMAL...? Mine is an 08 with 6500 miles on it, does what jays does. After 2 or 3 times stopping it goes away. If it is dust, then I understand. I live in West Virginia so the coal trucks keep it dusty here. __________________ 2008 Colorado Reg Cab W/T 2.9 5-Speed

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