Cutting Holes in the Stock Bumper - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Anadrol · 01-28-2010, 05:52 PM

I want to cut holes for fog lights in my stock bumper. I have come to the conclusion that this is probably not a great idea because of what the holes may do to the chrome around the edges of the cuts.

BUT...

My bumper is already kind of effed up, and it's not show quality at all, so I'm gonna experiment. I want to cut little circles and then french in some yellow HID projector bulbs and run them as fog lights.

My question is, how should I prep the edges of the cut? I'm going to use a hole saw, and then bracket them in from behind somehow, but my concerns are the chrome, the edges, and how it will look from the front with the round domes peeking out of the bumper. I don't really know what else to do.

Hottrucks · 01-28-2010, 06:03 PM

Tape the edge of the cut then pain the edge of the hole with silver...I would use a simple L bracket with a stainless bolt though the face of the bumper

**old Rusty C10** · 01-28-2010, 06:55 PM

the only thing i could add to Hot's post is to maybe use a dremel to smooth out the cut edges some prior to paint..

Pyrotechnic · 01-28-2010, 07:15 PM

LMC sells a bumper that already has fog lights in it like you describe.

Benelli · 01-28-2010, 09:42 PM

Quote:

Originally Posted by Pyrotechnic

LMC sells a bumper that already has fog lights in it like you describe.

if he can do it in his garage with things he already has then i don't see why he should go out and pay LMC plenty of cash.

go buy a can of drilling oil and grab a buddy to squirt it on your bumper when your cutting, i've found that to help out a ton.

**N2TRUX** · 01-28-2010, 10:49 PM

To get it started properly locate the center of where you want your hole and center punch the spot. Then drill a small pilot hole. Put a couple of layers of duct tape down and start drilling from the front side till you get about half way through. Flip the bumper and finish drilling from the back side.
This will prevent the chrome from peeling when you "break through" with the hole saw.

qu1cks1lver56 · 01-28-2010, 11:08 PM

Use a knockout driver. I used one on my rear bumper for my trailer light plug, and altough you're supposedly not supposed to use a knockout driver on that kind of steel, it cut fine.

Then you get a clean, perfect hole.

Anadrol · 02-01-2010, 04:19 PM

It is done. Thanks for all the advice- it helped a ton.
I need to get pictures on here, i know, i know.

**N2TRUX** · 02-01-2010, 04:26 PM

Quote:

Originally Posted by Anadrol

It is done.....I need to get pictures on here, i know, i know.

Without pics it never happened.

Driveway Dreams · 02-01-2010, 04:35 PM

Glad to think it might have happened though.

Anadrol · 02-03-2010, 08:39 PM

Quote:

Originally Posted by N2TRUX

Without pics it never happened.

Read my build thread ( http://67-72chevytrucks.com/vboard/s...d.php?t=370452 ) for the full write up and all the pictures. I've got plenty of pics up now, so it officially happened!

01-28-2010, 05:52 PM	#1
Anadrol Registered User Join Date: Nov 2009 Location: Indy Posts: 151	Cutting Holes in the Stock Bumper I want to cut holes for fog lights in my stock bumper. I have come to the conclusion that this is probably not a great idea because of what the holes may do to the chrome around the edges of the cuts. BUT... My bumper is already kind of effed up, and it's not show quality at all, so I'm gonna experiment. I want to cut little circles and then french in some yellow HID projector bulbs and run them as fog lights. My question is, how should I prep the edges of the cut? I'm going to use a hole saw, and then bracket them in from behind somehow, but my concerns are the chrome, the edges, and how it will look from the front with the round domes peeking out of the bumper. I don't really know what else to do.

01-28-2010, 06:03 PM	#2
Hottrucks Redefining LowBudget Join Date: Mar 2009 Location: lebanon Cow Hampshire Posts: 4,538	Re: Cutting Holes in the Stock Bumper Tape the edge of the cut then pain the edge of the hole with silver...I would use a simple L bracket with a stainless bolt though the face of the bumper __________________ 1970 C10 CST fleetside 472 ....big dreams little cash... http://67-72chevytrucks.com/vboard/s...d.php?t=335721 SunShine Syndicate.. Mikes Sandwich Fair Run OCT 8th 2011 http://www.thesandwichfair.com/html/...auto_show.html

01-28-2010, 06:55 PM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: Cutting Holes in the Stock Bumper the only thing i could add to Hot's post is to maybe use a dremel to smooth out the cut edges some prior to paint.. __________________ 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!!

01-28-2010, 07:15 PM	#4
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: Cutting Holes in the Stock Bumper LMC sells a bumper that already has fog lights in it like you describe. __________________ 1977 GMC Sierra Grande

01-28-2010, 10:49 PM	#6
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: Cutting Holes in the Stock Bumper To get it started properly locate the center of where you want your hole and center punch the spot. Then drill a small pilot hole. Put a couple of layers of duct tape down and start drilling from the front side till you get about half way through. Flip the bumper and finish drilling from the back side. This will prevent the chrome from peeling when you "break through" with the hole saw. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

01-28-2010, 11:08 PM	#7
qu1cks1lver56 Registered User Join Date: Dec 2009 Location: Milton, FL Posts: 733	Re: Cutting Holes in the Stock Bumper Use a knockout driver. I used one on my rear bumper for my trailer light plug, and altough you're supposedly not supposed to use a knockout driver on that kind of steel, it cut fine. Then you get a clean, perfect hole. __________________ My 86 http://67-72chevytrucks.com/vboard/s...d.php?t=375526

02-01-2010, 04:19 PM	#8
Anadrol Registered User Join Date: Nov 2009 Location: Indy Posts: 151	Re: Cutting Holes in the Stock Bumper It is done. Thanks for all the advice- it helped a ton. I need to get pictures on here, i know, i know.

02-01-2010, 04:35 PM	#10
Driveway Dreams I have car A.D.D. Join Date: Feb 2009 Location: Greeley, Northern Colorado Posts: 4,147	Re: Cutting Holes in the Stock Bumper Glad to think it might have happened though. __________________ -Gerald Building vehicles in memory of the first "car guy" I ever knew, my Grandpa. Bob Dunham 1935-2009. Rest in peace. 61 GMC Suburban SOLD The 86 build thread SOLD Are you a Colorado member?Click here.

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