How do you shave and narrow front and back bumpers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bulldog88 · 12-23-2009, 10:34 PM

How do you shave and narrow front and back bumpers on a 68? How do you get rid of the bumper bolts to have a smooth clean look. I plan on buying new chrome bumpers

**WIDESIDE72** · 12-23-2009, 10:54 PM

Don't bother buying chrome bumpers if you are going to narrow them. You will just have to spend more $$$ getting them re chromed after you are done narrowing them. I have never narrowed the bumpers on a 67-72, but I did narrow them on a 79 Malibu to eliminate the stupid rubber/ plastic fill panels. I just cut them off where the 90 degree bend started, took another 2" off each end of the center section, then welded the ends back on. I sand blasted the chrome til it was rough, then had the bumpers painted body color.

cdowns · 12-23-2009, 11:29 PM

if you want a chromed final product i suggest b4 doing anything find out how many hundreds the chome guy wants to chrome a bumper assy. it may cause you to rethink the project

the mods you want to do are just a matter of cutting welding and filling

skchevota · 12-23-2009, 11:34 PM

cut, weld, grind, repeat!

skchevota · 12-23-2009, 11:35 PM

for the bumper bolts, weld up the holes, and then weld bolts to the back side of the bumper like studs.

BAGNDRAGIT · 12-23-2009, 11:52 PM

Quote:

Originally Posted by skchevota

cut, weld, grind, repeat!

Nailed It!

Willy Prost · 12-24-2009, 09:56 AM

on bumper bolts...
they are carrage style bolts(rounded head with a square section beneath the rounded head, then the shaft with threads for the bolt)
Cut the rounded heads off the bumper bolts...
mount headless bolts to bumper brackets...
place bumper over the headless bolts...
weld bumper to bolt...
grind until smooth...
send out to chrome shop

on narrow bumpers... Two Guys Garage on SPEED channel just had an example
http://www.twoguysgarage.com/index.p...on-8&Itemid=75

**WIDESIDE72** · 12-24-2009, 10:23 AM

Quote:

Originally Posted by cdowns

if you want a chromed final product i suggest b4 doing anything find out how many hundreds the chome guy wants to chrome a bumper assy. It may cause you to rethink the project

the mods you want to do are just a matter of cutting welding and filling

x2

Rollie396 · 12-24-2009, 11:17 AM

http://www.hotrodders.com/forum/shav...hod-61405.html
Post #2 describes the "proper" way to shave a bumper.I've heard (no personal experience)that chrome shops may not be willing to chrome a bumper that doesn't have the washers as they tend to crack.May be worth talking to the shop you plan on using beforehand and get their opinion.
Post #7 makes a good point too,Martinsr really knows his stuff,so if he says so then it's so.

Bulldog88 · 12-29-2009, 07:35 PM

Thanks guys for the helpful info. So for the rear bumper to hug the body a little more I was thinking maybe cutting the brackets a 1/2 inch or more and welding them back together.

12-23-2009, 10:34 PM	#1
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	How do you shave and narrow front and back bumpers How do you shave and narrow front and back bumpers on a 68? How do you get rid of the bumper bolts to have a smooth clean look. I plan on buying new chrome bumpers

12-23-2009, 11:29 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: How do you shave and narrow front and back bumpers if you want a chromed final product i suggest b4 doing anything find out how many hundreds the chome guy wants to chrome a bumper assy. it may cause you to rethink the project the mods you want to do are just a matter of cutting welding and filling __________________ 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

12-23-2009, 11:34 PM	#4
skchevota Registered User Join Date: Oct 2006 Location: Evans, Colorado Posts: 530	Re: How do you shave and narrow front and back bumpers cut, weld, grind, repeat!

12-23-2009, 11:35 PM	#5
skchevota Registered User Join Date: Oct 2006 Location: Evans, Colorado Posts: 530	Re: How do you shave and narrow front and back bumpers for the bumper bolts, weld up the holes, and then weld bolts to the back side of the bumper like studs.

12-24-2009, 11:17 AM	#9
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: How do you shave and narrow front and back bumpers http://www.hotrodders.com/forum/shav...hod-61405.html Post #2 describes the "proper" way to shave a bumper.I've heard (no personal experience)that chrome shops may not be willing to chrome a bumper that doesn't have the washers as they tend to crack.May be worth talking to the shop you plan on using beforehand and get their opinion. Post #7 makes a good point too,Martinsr really knows his stuff,so if he says so then it's so. __________________ '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

12-23-2009, 10:54 PM	#2
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: How do you shave and narrow front and back bumpers Don't bother buying chrome bumpers if you are going to narrow them. You will just have to spend more $$$ getting them re chromed after you are done narrowing them. I have never narrowed the bumpers on a 67-72, but I did narrow them on a 79 Malibu to eliminate the stupid rubber/ plastic fill panels. I just cut them off where the 90 degree bend started, took another 2" off each end of the center section, then welded the ends back on. I sand blasted the chrome til it was rough, then had the bumpers painted body color.

12-24-2009, 09:56 AM	#7
Willy Prost Senior Member Join Date: Jan 2000 Location: Arlington, VA Posts: 398	Re: How do you shave and narrow front and back bumpers on bumper bolts... they are carrage style bolts(rounded head with a square section beneath the rounded head, then the shaft with threads for the bolt) Cut the rounded heads off the bumper bolts... mount headless bolts to bumper brackets... place bumper over the headless bolts... weld bumper to bolt... grind until smooth... send out to chrome shop on narrow bumpers... Two Guys Garage on SPEED channel just had an example http://www.twoguysgarage.com/index.p...on-8&Itemid=75

12-29-2009, 07:35 PM	#10
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Re: How do you shave and narrow front and back bumpers Thanks guys for the helpful info. So for the rear bumper to hug the body a little more I was thinking maybe cutting the brackets a 1/2 inch or more and welding them back together.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.