I keep loosing upper fender bolt - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blazer2007 · 10-21-2019, 10:31 AM

I keep loosing my upper right fender bolt and spacers by the windshield. It takes a month or 2 to loose them but am Leary about using lock tite in case I have to remove the fender in the future. I had to replace weld nut on my other truck and is was not fun when the bolt started twisting the nut on the body

Keith Seymore · 10-21-2019, 11:47 AM

We built about 15 million squarebodies (so about 30 million fender attachments) and I have never heard of this phenomenon before.

You might want to look at the rest of the attachments and see if something else is causing this (ie, loose or bad radiator support cushions, other loose attachments or maybe too many shims at that location, etc).

In any case - I would think a little blue Loctite would be ok.

K

SCOTI · 10-21-2019, 11:49 AM

I've lost a few on my dually as well. I always no it because the truck starts creaking really bad over bumps all of a sudden. Sure enough, each time it happens, the bolt is missing again.

**old Rusty C10** · 10-21-2019, 12:14 PM

can always use a little Teflon tape on it to keep it secured

SunSoaked · 10-21-2019, 05:15 PM

A good cross-thread beats locktite every time.

Dead Parrot · 10-21-2019, 06:12 PM

If you are worried about spinning another weld nut, put the loctite on the nut head and shims. Not as secure but might be enough.

geezer#99 · 10-21-2019, 10:19 PM

Thread a piece of copper wire in with the bolt. The wire will meld into the threads and stay tight.

SunSoaked · 10-21-2019, 11:05 PM

Quote:

Originally Posted by geezer#99

Thread a piece of copper wire in with the bolt. The wire will meld into the threads and stay tight.

Meld? I had to look that one up. Lol

**mongocanfly** · 10-22-2019, 12:31 AM

Nothing wrong with blue loctite....or maybe a lock washer under bolt?

geezer#99 · 10-22-2019, 09:06 AM

Quote:

Originally Posted by SunSoaked

Meld? I had to look that one up. Lol

I could have said ‘ooze’ but that’s kind of a creepy thought!
LOL!

truckin 79 · 10-22-2019, 11:19 AM

I just noticed Loctite has a new type of thread locker it is orange. Give that a try

Keith Seymore · 10-22-2019, 12:27 PM

Quote:

Originally Posted by truckin 79

I just noticed Loctite has a new type of thread locker it is orange. Give that a try

Where does that fall in the spectrum of red vs blue?

K

**mongocanfly** · 10-22-2019, 12:55 PM

I dont think the orange is meant for threads......https://www.fastenal.com/products/details/0150423

demian5 · 10-22-2019, 01:24 PM

The only things I could think that "over time" would cause this is:
1. Not having a bolt at the bottom of the fender under the cab, or a rusted fender that cant be secured.
2. A bent fender that the door hits when opening and closing.
3. Tires that rub the fenders when turning or going through dips and vibrate the fenders with the tread.
4. Off-roading on washboard roads.
5. Excessive shopping cart bashing at the local mall.

**mongocanfly** · 10-22-2019, 02:21 PM

#5 ... haha....

Llay R. Rac · 10-22-2019, 02:49 PM

a coating of solder on the threads works great, add a piece of thin copper wire if the fit is very loose.

Keith Seymore · 10-22-2019, 02:51 PM

Quote:

Originally Posted by mongocanfly

I dont think the orange is meant for threads......https://www.fastenal.com/products/details/0150423

Ah - so it is a sealant.

K

SCOTI · 10-22-2019, 03:34 PM

Quote:

Originally Posted by demian5

The only things I could think that "over time" would cause this is:
1. Not having a bolt at the bottom of the fender under the cab, or a rusted fender that cant be secured. I'd have to dbl check that but if I remember all other hardware was in place for mine.
2. A bent fender that the door hits when opening and closing. No interference @ the doors. A couple of small door dings only on my OE sheet metal.
3. Tires that rub the fenders when turning or going through dips and vibrate the fenders with the tread. Aftermarket raised inner fender wells so no rubbing except for the seldom buzz (happened maybe 3-4 times since 2015) if turned too sharp while navigating a dip/driveway entrance.
4. Off-roading on washboard roads. Only 'off-roading' mine experiences is an occasional field maybe at idle speed. Now our regular pothole infested roads are a different story....
5. Excessive shopping cart bashing at the local mall. 2x parking lot bruises. Other than that, no shopping cart bashing.

While anything is possible....

Big Chip · 10-24-2019, 09:18 AM

https://www.permatex.com/products/th...-threadlocker/

There's also this stuff.

blazer2007 · 10-24-2019, 09:51 AM

I think I will tie a string around the bolt like little kids mittens so I don,t loose it

**mongocanfly** · 10-24-2019, 10:30 PM

Any way to safety wire it?....drill a hole thru the head...tighten bolt ...run wire thru hole and fasten to something

SunSoaked · 10-24-2019, 10:51 PM

21 posts regarding a loose bolt. Lol.

**kidatheart** · 10-27-2019, 10:48 AM

Quote:

Originally Posted by SunSoaked

21 posts regarding a loose bolt. Lol.

We are up to 23 now!!

1976gmc20 · 10-27-2019, 10:57 AM

Well, if your bolt is loose then you may lose it

**Factory Guy** · 11-06-2019, 08:01 PM

My guess is you have a vibration problem you may not feel but your bolt and fender are feeling it, that’s why they keep vibrating out.

Don’t put a bandaid on your knee when the cut is on your finger.

Rather than patch the problem, I would look at trying to solve the issue.

10-21-2019, 10:31 AM	#1
blazer2007 Registered User Join Date: Jan 2007 Location: vernon b.c. Posts: 3,022	I keep loosing upper fender bolt I keep loosing my upper right fender bolt and spacers by the windshield. It takes a month or 2 to loose them but am Leary about using lock tite in case I have to remove the fender in the future. I had to replace weld nut on my other truck and is was not fun when the bolt started twisting the nut on the body

10-21-2019, 11:47 AM	#2
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: I keep loosing upper fender bolt We built about 15 million squarebodies (so about 30 million fender attachments) and I have never heard of this phenomenon before. You might want to look at the rest of the attachments and see if something else is causing this (ie, loose or bad radiator support cushions, other loose attachments or maybe too many shims at that location, etc). In any case - I would think a little blue Loctite would be ok. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

10-21-2019, 11:49 AM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: I keep loosing upper fender bolt I've lost a few on my dually as well. I always no it because the truck starts creaking really bad over bumps all of a sudden. Sure enough, each time it happens, the bolt is missing again. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

10-21-2019, 12:14 PM	#4
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: I keep loosing upper fender bolt can always use a little Teflon tape on it to keep it secured __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

10-21-2019, 06:12 PM	#6
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,611	Re: I keep loosing upper fender bolt If you are worried about spinning another weld nut, put the loctite on the nut head and shims. Not as secure but might be enough.

10-21-2019, 05:15 PM	#5
SunSoaked Registered User Join Date: Dec 2011 Location: Yuma Arizona Posts: 1,525	Re: I keep loosing upper fender bolt A good cross-thread beats locktite every time.

10-21-2019, 10:19 PM	#7
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,733	Re: I keep loosing upper fender bolt Thread a piece of copper wire in with the bolt. The wire will meld into the threads and stay tight.

10-22-2019, 12:31 AM	#9
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: I keep loosing upper fender bolt Nothing wrong with blue loctite....or maybe a lock washer under bolt? __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

10-22-2019, 11:19 AM	#11
truckin 79 Registered User Join Date: Jun 2014 Location: CO Posts: 749	Re: I keep loosing upper fender bolt I just noticed Loctite has a new type of thread locker it is orange. Give that a try __________________ 79 Chevy 2wd BIG10 350 TH400

10-22-2019, 12:55 PM	#13
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: I keep loosing upper fender bolt I dont think the orange is meant for threads......https://www.fastenal.com/products/details/0150423 __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

10-22-2019, 01:24 PM	#14
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: I keep loosing upper fender bolt The only things I could think that "over time" would cause this is: 1. Not having a bolt at the bottom of the fender under the cab, or a rusted fender that cant be secured. 2. A bent fender that the door hits when opening and closing. 3. Tires that rub the fenders when turning or going through dips and vibrate the fenders with the tread. 4. Off-roading on washboard roads. 5. Excessive shopping cart bashing at the local mall. __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

10-22-2019, 02:21 PM	#15
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: I keep loosing upper fender bolt #5 ... haha.... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

10-22-2019, 02:49 PM	#16
Llay R. Rac Registered User Join Date: Jul 2016 Location: Arizona Posts: 324	Re: I keep loosing upper fender bolt a coating of solder on the threads works great, add a piece of thin copper wire if the fit is very loose. __________________ 1965 Suburban, 2 wd.,292, 4-speed. proudly owned and operated since Valentines day 1969.

10-24-2019, 09:18 AM	#19
Big Chip Registered User Join Date: Oct 2017 Location: Roscommon, Michigan Posts: 100	Re: I keep loosing upper fender bolt https://www.permatex.com/products/th...-threadlocker/ There's also this stuff.

10-24-2019, 09:51 AM	#20
blazer2007 Registered User Join Date: Jan 2007 Location: vernon b.c. Posts: 3,022	Re: I keep loosing upper fender bolt I think I will tie a string around the bolt like little kids mittens so I don,t loose it



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10-24-2019, 10:30 PM	#21
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: I keep loosing upper fender bolt Any way to safety wire it?....drill a hole thru the head...tighten bolt ...run wire thru hole and fasten to something __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

10-24-2019, 10:51 PM	#22
SunSoaked Registered User Join Date: Dec 2011 Location: Yuma Arizona Posts: 1,525	Re: I keep loosing upper fender bolt 21 posts regarding a loose bolt. Lol.

10-27-2019, 10:57 AM	#24
1976gmc20 Registered User Join Date: May 2015 Location: Montana Posts: 3,696	Re: I keep loosing upper fender bolt Well, if your bolt is loose then you may lose it __________________ Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner

11-06-2019, 08:01 PM	#25
Factory Guy Senior Member Join Date: Jun 2019 Location: Midway USA Kentucky Posts: 566	Re: I keep loosing upper fender bolt My guess is you have a vibration problem you may not feel but your bolt and fender are feeling it, that’s why they keep vibrating out. Don’t put a bandaid on your knee when the cut is on your finger. Rather than patch the problem, I would look at trying to solve the issue.

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