Front bumper bolts question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**71CHEVYSHORTBED402** · 09-22-2015, 03:30 PM

71 Chevy

There are six bolts that mount the front bumper to the brackets. If you look closely, the heads on two of these bolts are more rounded than the other four. The other four come to somewhat a peak, similar to the mushroom in this link (ha!). http://pngimg.com/upload/mushroom_PNG3186.png

I think the two more rounded heads are for the top center. Can you confirm or correct?

Didn't see it when I took them off.

**leddzepp** · 09-22-2015, 03:33 PM

All six bolts are the same.

piecesparts · 09-22-2015, 03:56 PM

The bolt heads will differ with the manufacturer. Get a full set form one source and replace the old ones so that they all look the same.

cdowns · 09-22-2015, 05:23 PM

The bolts are all the same from the factory// i think that your bumper may have had bumperrettes on it at some time and somebody lost or destroyed some of the originals

**71CHEVYSHORTBED402** · 09-22-2015, 05:49 PM

Quote:

Originally Posted by piecesparts

The bolt heads will differ with the manufacturer. Get a full set form one source and replace the old ones so that they all look the same.

I'm planning to do this anyway. Note, this was the original bumper and the heads are not the same. That said, it could have been taken off at some point, before I got this in 1989.

The original owner had a slot cut out from the bumper and a boat launching hitch welded to it. Shame, the bumper is probably worth recycle only.

67swb72klb · 09-22-2015, 06:21 PM

I believe the original GM carriage bolts have a higher dome than any replacement that I have seen so far

poway · 09-23-2015, 12:24 AM

Are the front bumpers on a 1968 chevy C10 the same for a 1968 GMC C1500? The one on the GMC needs to be replaced.
Thanks in advance for any info.

**'68OrangeSunshine** · 09-23-2015, 01:48 AM

Not so sure about the '68 [and '67] GMCs but later GMC bumpers had those rolled-back rims under the Turn Signal/Parking Lamps so the bumper didn't eclipse half the running light. Chevys had those lights higher in the grille or '71 -'72 in the bumper itself.
Other than the cut-outs, the GMC bumper should be just like the '67-'70 Chevys.

In The Ten Ring · 09-23-2015, 11:28 AM

I have my 1972 bumper off and the carriage bolts are unique (in my mind) in that the shiny heads appear to be due to a thin metal wrapped over the top and tucked into the underside of the head. I can see its edge under there.

All my bolts are uniform in shape.

09-22-2015, 03:30 PM	#1
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,121	Front bumper bolts question 71 Chevy There are six bolts that mount the front bumper to the brackets. If you look closely, the heads on two of these bolts are more rounded than the other four. The other four come to somewhat a peak, similar to the mushroom in this link (ha!). http://pngimg.com/upload/mushroom_PNG3186.png I think the two more rounded heads are for the top center. Can you confirm or correct? Didn't see it when I took them off. __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025

09-22-2015, 03:33 PM	#2
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 19,981	Re: Front bumper bolts question All six bolts are the same. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man

09-22-2015, 03:56 PM	#3
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: Front bumper bolts question The bolt heads will differ with the manufacturer. Get a full set form one source and replace the old ones so that they all look the same. __________________ Frank

09-22-2015, 05:23 PM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Front bumper bolts question The bolts are all the same from the factory// i think that your bumper may have had bumperrettes on it at some time and somebody lost or destroyed some of the originals __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-22-2015, 06:21 PM	#6
67swb72klb Registered User Join Date: Dec 2010 Location: livingston co.mi Posts: 2,449	Re: Front bumper bolts question I believe the original GM carriage bolts have a higher dome than any replacement that I have seen so far __________________ California 65 GTO---Texas 64 burb 283 ---Oklahoma 67 CST SWB BBW wood bed 327 2004r---New Mexico 72 k10 350 350 auto---Georga 72 short step project

09-23-2015, 12:24 AM	#7
poway Registered User Join Date: Jun 2012 Location: Poway, CA Posts: 119	Re: Front bumper bolts question Are the front bumpers on a 1968 chevy C10 the same for a 1968 GMC C1500? The one on the GMC needs to be replaced. Thanks in advance for any info.

09-23-2015, 01:48 AM	#8
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,053	Re: Front bumper bolts question Not so sure about the '68 [and '67] GMCs but later GMC bumpers had those rolled-back rims under the Turn Signal/Parking Lamps so the bumper didn't eclipse half the running light. Chevys had those lights higher in the grille or '71 -'72 in the bumper itself. Other than the cut-outs, the GMC bumper should be just like the '67-'70 Chevys. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

09-23-2015, 11:28 AM	#9
In The Ten Ring Registered User Join Date: Jun 2013 Location: West Virginia Posts: 6,421	Re: Front bumper bolts question I have my 1972 bumper off and the carriage bolts are unique (in my mind) in that the shiny heads appear to be due to a thin metal wrapped over the top and tucked into the underside of the head. I can see its edge under there. All my bolts are uniform in shape.



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