I HATE HATE HATE rattles... Ideas and comments preferred! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

redz 1970 K5 · 01-04-2005, 03:18 PM

So, my doors sound like there is about 10 loose nuts and bolts at the bottom of each, and the rattling has reached a boiling point with me after I installed the 38s.

Basically, the inner/outer felts are shot, the channel liner is shot, and the metal door panels don't help any.

So, I need to work these doors a bit. The felts and channel liners are a given- and I have those on hand. It's more about the door panels.

I am not going to pay the astronomical price for dynomat, and it has to be weather proof since as soon as spring hits, the top will be off the Blazer ALL spring/summer/fall. I am really thinking about using rubberized undercoating...

Maybe shooting it in the doors, and on the back of the panels to minimize metal to metal contact. What do you guys think?

**CPNE** · 01-04-2005, 03:24 PM

Have you removed the door panels and inspected the inside for debris? Cause if it's just the glass ratting, the felts and fuzzies will fix that. Maybe you'll find the loose nut the prev owner had behind the wheel.

70c10 · 01-04-2005, 03:26 PM

2 weeks ago I found a brake pedal and mirror backing plate in mine,lol. It seems to be common to find crazy stuff in these old truck doors. Pull the panel and look.

67ChevyRedneck · 01-04-2005, 03:29 PM

First thing I would do would be to remove the 10 loose nuts and bolts, that outta quiet things down a bit! j/k, my door panels had some weird looking white foam stuff behind them. I'm pretty sure it was factory. It was about 1/2" x 1/2" strips.That seemed to keep things pretty quiet. I then decided 72 panels would look really good in my 67...I don't have any sound problems with them...plastic on metal much quieter! Also, make sure you have the foam thingys that go behind the panel around the door and window regulator, that helps too! I was thinking of trying the undercoating inside the door myself....only couple bucks a can at Wally-World!!! Let us know if it helps.

64fleetside · 01-04-2005, 03:53 PM

I used roofing mastic, $100 for a 100 ft roll at the roofing supply house. Sell some of it to your buddies & actually make money, the bumpin guys love it, 100 ft goes a loonnng way. Sticky as hell on one side, looks just like Dynamat, black. Mine is called Miradri brand. It is amazing the difference in the door panel noise. I did the floors, behind the tank etc. Brian

doc_rock · 01-04-2005, 10:42 PM

I doubled up an inner tube I had, and put it behind the door panels in an S-10 I built. It quietened down the rattle A LOT

Rollie396 · 01-05-2005, 12:02 AM

First thing I thought of was the original mirror backing plate as well.Mine rattled and I found the plate in the bottom of the door when I went exploring.(P.O. had changed mirrors at some point).

GMC71k20 · 01-05-2005, 01:16 AM

youve put 38s on your truck and you havent posted any pictures???????????????????/

Brainchild · 01-05-2005, 01:22 AM

The weather stripping will help a lot.The doorpanels aren't as big a problem as the felts prolly.
Mine has some foam also,looks like the weatherstrip they use on home doors,that's sticky on one side.It kinda makes a circle around the doorpanel.Might give that a try.

I found a window track,door handle,and several nuts and screws.It is a collection spot apparently

redz 1970 K5 · 01-05-2005, 02:08 AM

Quote:

Originally Posted by GMC71k20

youve put 38s on your truck and you havent posted any pictures???????????????????/

Here ya go chief! You should checkout the Blazer forum! That is where my live thread has been...

4x4Poet · 01-05-2005, 03:20 AM

Awesome Blazer. Time to change your sig line.

GMC71k20 · 01-05-2005, 11:47 AM

ya, blazer looks real nice.

01-04-2005, 03:18 PM	#1
redz 1970 K5 OBS guy Join Date: Jun 2004 Location: SoCal Posts: 1,060	I HATE HATE HATE rattles... Ideas and comments preferred! So, my doors sound like there is about 10 loose nuts and bolts at the bottom of each, and the rattling has reached a boiling point with me after I installed the 38s. Basically, the inner/outer felts are shot, the channel liner is shot, and the metal door panels don't help any. So, I need to work these doors a bit. The felts and channel liners are a given- and I have those on hand. It's more about the door panels. I am not going to pay the astronomical price for dynomat, and it has to be weather proof since as soon as spring hits, the top will be off the Blazer ALL spring/summer/fall. I am really thinking about using rubberized undercoating... Maybe shooting it in the doors, and on the back of the panels to minimize metal to metal contact. What do you guys think? __________________ 88 Suburban Goodies- Alpine, Auto Meter, BDS, Bilstein, B&M, BFG, Borgeson, Bushwhacker, Cowl hood, Flowmaster, Genuine Gear, Holley, Infinity, JVC, K&N, MB Wheels, MSD, Pioneer, Skyjacker, Sony, Thorley, Walker + more

01-04-2005, 03:24 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	Have you removed the door panels and inspected the inside for debris? Cause if it's just the glass ratting, the felts and fuzzies will fix that. Maybe you'll find the loose nut the prev owner had behind the wheel. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-04-2005, 03:26 PM	#3
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	2 weeks ago I found a brake pedal and mirror backing plate in mine,lol. It seems to be common to find crazy stuff in these old truck doors. Pull the panel and look. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

01-04-2005, 03:29 PM	#4
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	First thing I would do would be to remove the 10 loose nuts and bolts, that outta quiet things down a bit! j/k, my door panels had some weird looking white foam stuff behind them. I'm pretty sure it was factory. It was about 1/2" x 1/2" strips.That seemed to keep things pretty quiet. I then decided 72 panels would look really good in my 67...I don't have any sound problems with them...plastic on metal much quieter! Also, make sure you have the foam thingys that go behind the panel around the door and window regulator, that helps too! I was thinking of trying the undercoating inside the door myself....only couple bucks a can at Wally-World!!! Let us know if it helps. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-04-2005, 10:42 PM	#6
doc_rock Registered User Join Date: Dec 2004 Location: Jacksonville, FL Posts: 84	I doubled up an inner tube I had, and put it behind the door panels in an S-10 I built. It quietened down the rattle A LOT __________________ 1969 Chevrolet C-10 Bananamobile. Yes, it's ugly, yes, it's rusty, it's slow too, but no, I'm not trying to show it.

01-04-2005, 03:53 PM	#5
64fleetside Registered User Join Date: Apr 2004 Location: arkieland Posts: 1,070	I used roofing mastic, $100 for a 100 ft roll at the roofing supply house. Sell some of it to your buddies & actually make money, the bumpin guys love it, 100 ft goes a loonnng way. Sticky as hell on one side, looks just like Dynamat, black. Mine is called Miradri brand. It is amazing the difference in the door panel noise. I did the floors, behind the tank etc. Brian

01-05-2005, 12:02 AM	#7
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	First thing I thought of was the original mirror backing plate as well.Mine rattled and I found the plate in the bottom of the door when I went exploring.(P.O. had changed mirrors at some point). __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

01-05-2005, 01:16 AM	#8
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,278	youve put 38s on your truck and you havent posted any pictures???????????????????/

01-05-2005, 01:22 AM	#9
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	The weather stripping will help a lot.The doorpanels aren't as big a problem as the felts prolly. Mine has some foam also,looks like the weatherstrip they use on home doors,that's sticky on one side.It kinda makes a circle around the doorpanel.Might give that a try. I found a window track,door handle,and several nuts and screws.It is a collection spot apparently __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

01-05-2005, 03:20 AM	#11
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Awesome Blazer. Time to change your sig line. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

01-05-2005, 11:47 AM	#12
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,278	ya, blazer looks real nice.



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