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 03-18-2017, 11:11 PM   #1
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
exhaust thry x-member question

hey when you fellas run your exhaust pipes thru the x member how are you,all doing it. pic,s would be super.
thanks
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-18-2017, 11:57 PM   #2
rocknss
Senior Member
 
rocknss's Avatar
 
Join Date: Oct 2004
Location: Milwaukee, WI
Posts: 400
Re: exhaust thry x-member question

Here is a picture of my exhaust going through the center cross member on my 69 Suburban.
Attached Images
 
__________________
Steven
69 Chevy C10 Suburban 350 700R4 w/Disc brakes on all four corners
2017 50th Anniversary Camaro SS
2004 Chevy Impala LS
2016 Chevy Malibu LT
rocknss is offline   Reply With Quote
Old 03-19-2017, 12:07 AM   #3
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

WHAT size holes did you cut and did yoy plate the crossmember . I,am gonna run 2 1/4 pipes
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-20-2017, 12:07 AM   #4
rocknss
Senior Member
 
rocknss's Avatar
 
Join Date: Oct 2004
Location: Milwaukee, WI
Posts: 400
Re: exhaust thry x-member question

I had an exhaust shop build my exhaust. I'm running a 2.5" exhaust so I believe the holes are around 3" in diameter. The X-member is not strengthened where the holes are cut.
__________________
Steven
69 Chevy C10 Suburban 350 700R4 w/Disc brakes on all four corners
2017 50th Anniversary Camaro SS
2004 Chevy Impala LS
2016 Chevy Malibu LT
rocknss is offline   Reply With Quote
Old 03-20-2017, 12:20 AM   #5
RPOZ11
72 BB C30 Super LongHorn
 
RPOZ11's Avatar
 
Join Date: Nov 2002
Location: Chavez Ravine
Posts: 1,429
Re: exhaust thry x-member question

Sorry to hijack your thread but what sway bar are you using here in this ?
__________________
72 BB C/30 Longhorn Super
HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM

73 Chevy C/20 454 Cheyenne Super CS #'s matching; Built TH400 / Allison convertor, 3:21.1 Eaton Posi, Tilt, AC
2017 SS
RPOZ11 is offline   Reply With Quote
Old 03-20-2017, 01:33 AM   #6
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

stock sway barbut I have a adjustable one ready to go in
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-20-2017, 12:16 PM   #7
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 431
Re: exhaust thry x-member question

Here's a couple of pics of my cross member through holes. I used 4 1/2" tube by 1 1/2" wide and 3/16" thick. I picked up the tube from a fab shop down the road from me.
Attached Images
  
__________________
Phil
"Money is only a tool to create and achieve what you want most in life"
RodnRudy is offline   Reply With Quote
Old 03-20-2017, 04:46 PM   #8
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

super rudy thanks. did you also flip the truck arm mounts
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-20-2017, 05:00 PM   #9
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 431
Re: exhaust thry x-member question

Yes I did flip the truck arm mounts but I changed them back because I thought there was too much pinion angle when I got the suspension loaded to ride height.
__________________
Phil
"Money is only a tool to create and achieve what you want most in life"
RodnRudy is offline   Reply With Quote
Old 03-20-2017, 10:41 PM   #10
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

RUDY, how much did you drop the rear suspension. mine is 6-7 lowered lwb and is hard on carrier bearings
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-20-2017, 11:34 PM   #11
tsetsaf
Registered User
 
Join Date: Dec 2007
Location: Southern CA
Posts: 206
Re: exhaust thry x-member question

These look great. We have an LS and that exhaust gets really hot... we also have air ride with nylon lines. Real hot + nylon lines = sudden leaks. If your plans include anything plastic/ melty in the area consider heat wrap or insulation/ heat shields.
__________________
71 C-20 Custom Camper
California Truck
tsetsaf is offline   Reply With Quote
Old 03-21-2017, 01:27 AM   #12
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

no plastic on my truck
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-21-2017, 06:55 AM   #13
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 431
Re: exhaust thry x-member question

My 68 has a 5 1/2-7" drop but I have a one piece drive shaft.
__________________
Phil
"Money is only a tool to create and achieve what you want most in life"
RodnRudy is offline   Reply With Quote
Old 03-21-2017, 07:14 AM   #14
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,178
Re: exhaust thry x-member question

rudy, is your truck lwb
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 03-21-2017, 07:27 AM   #15
RodnRudy
Senior Member
 
RodnRudy's Avatar
 
Join Date: Oct 2014
Location: New Palestine In
Posts: 431
Re: exhaust thry x-member question

No, short wheel base
__________________
Phil
"Money is only a tool to create and achieve what you want most in life"
RodnRudy is offline   Reply With Quote
Old 03-21-2017, 06:09 PM   #16
70c10resto
Active Member
 
Join Date: Jan 2016
Location: Ocean Springs, Mississippi
Posts: 121
Re: exhaust thry x-member question

http://www.azproperformance.com/Dead...63-72-C10.html

Here is a bolt in option also.
70c10resto is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 04:28 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com