The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-27-2007, 12:18 PM   #1
phanatic32212
It's Done When It Runs!!
 
phanatic32212's Avatar
 
Join Date: Sep 2002
Location: Jacksonville, FL (Orange Park)
Posts: 220
Another exhaust question...

Is it okay to cut holes in a cross member? I need to route my exhaust higher off of the ground and the only way I can see to do it is to route it through the crossmember. Obviously, it would weaken the support but enough to be a problem? Maybe someone has a better idea? Thanks in advance. JAke
__________________
Or Give Me DEATH
phanatic32212 is offline   Reply With Quote
Old 10-28-2007, 06:46 AM   #2
dznucks
Registered User
 
dznucks's Avatar
 
Join Date: Feb 2006
Location: Smyrna, Ga
Posts: 1,647
Re: Antoher exhaust question...

I got the same question. I am about to route my eshaust through the cross member and was curious about that. I know the aftermarket ones have exhaust passages.

Out of curiousity how are you going to route your exhaust? X/H pipe? Mufflers?
dznucks is offline   Reply With Quote
Old 10-28-2007, 07:27 AM   #3
Gray Ghost
Senior Member
 
Gray Ghost's Avatar
 
Join Date: Sep 2004
Location: Terrell, TX
Posts: 1,967
Re: Antoher exhaust question...

I have seen them cut, but there's an insert you need to stiffen the crossmember after cutting the hole. I believe it was a round insert, but I can't remember. Maybe someone else has seen the pic and has a link.
__________________
Kelly
'05 GMC Sierra SLE Z71
Bone stock except for new bed rail caps.
Gray Ghost is offline   Reply With Quote
Old 10-28-2007, 07:36 AM   #4
phanatic32212
It's Done When It Runs!!
 
phanatic32212's Avatar
 
Join Date: Sep 2002
Location: Jacksonville, FL (Orange Park)
Posts: 220
Re: Antoher exhaust question...

I have an H pipe now, I plan to do the same with flowmaster 40's and some exhaust cutouts right after the headers.
__________________
Or Give Me DEATH
phanatic32212 is offline   Reply With Quote
Old 10-29-2007, 12:04 AM   #5
phanatic32212
It's Done When It Runs!!
 
phanatic32212's Avatar
 
Join Date: Sep 2002
Location: Jacksonville, FL (Orange Park)
Posts: 220
Re: Antoher exhaust question...

No help guys? I know you know the answer...
__________________
Or Give Me DEATH
phanatic32212 is offline   Reply With Quote
Old 10-29-2007, 01:27 AM   #6
corn
Registered User
 
Join Date: Dec 2003
Location: here
Posts: 5,789
Re: Antoher exhaust question...

Yes you can cut it, just weld a ring in the hole to strengthen it back up. There are some pics on here, search exhaust maybe...
corn is offline   Reply With Quote
Old 10-29-2007, 07:37 AM   #7
70GMCer
Senior Member
 
70GMCer's Avatar
 
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
Re: Antoher exhaust question...

Is this what you mean?

http://67-72chevytrucks.com/vboard/s...d.php?t=201474

I also saw this on Ebay.

http://cgi.ebay.com/ebaymotors/63-72...spagenameZWDVW
__________________
1997 GMC Sierra Ext

1965 Mustang

Last edited by 70GMCer; 10-29-2007 at 07:39 AM.
70GMCer is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:59 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com