Front air line routing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chapster · 02-21-2010, 12:12 PM

Hey guy`s, I can not find any recent conclusions through my searches what is the best method to run the front air line when using stock cross member and bag plates.

I see some have drilled throug hthe back and some through the side. Also how to route line for both methods.

Thanks for the help in advance.

umwtnt · 02-21-2010, 03:21 PM

I drill down thru the frame and front crossmember and use a thru-frame fitting that is used for DOT hose. The type you find on OTR trucks. You push in the hose and it stays secure. I believe I found them at fastenal. I thought I had some pictures of the process but I don't and the truck is in florida right now and I'm in NC. The thru-frame fitting is simpler to a brake thru-frame fitting but for air lines. I wish I could help you more. Good Luck

chapster · 02-21-2010, 03:34 PM

Thanks for the info umwtnt. I will have to keep looking as I understand your concept but will have to visually see it.

Thanks again,

**lolife99** · 02-21-2010, 03:42 PM

You can drill a hole and install a rubber grommet around your DOT air line to protect it.
I routed my line on the inside of the frame along the passenger side.
One line to the right front bag, and one line across the inside of the crossmember to the left front bag.

chapster · 02-21-2010, 03:55 PM

Hey Keith,

Did you drill your hole in the back side of the crossmember

**lolife99** · 02-21-2010, 04:39 PM

The back side will work.
I drilled mine in the top of the crossmember underneath the motor mount stand.
I have 1/4" airline so it bends easily.
Plus I had my lower a-arms completely off, so it made it easy to drill the holes from the bottom up.
I just wanted my air line away from heat or anything that would snag them.

It mainly depends where your air management system is located. Mine was at the right rear corner of my blazer. Routing lines is just personal preference.
Just,... keep them away from heat and sharp edges. And secure them so the don't flop around.

tcb-1 · 02-21-2010, 05:52 PM

check out my build thread. I ran mine about a month ago. easy, clean, and SAFE.

chapster · 02-21-2010, 08:49 PM

Thanks for the info guy's,

tcb-1 your build thread also helped alot.
What is your front tire diameter?

tcb-1 · 02-21-2010, 09:32 PM

pm sent, chapster...

02-21-2010, 12:12 PM	#1
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Front air line routing Hey guy`s, I can not find any recent conclusions through my searches what is the best method to run the front air line when using stock cross member and bag plates. I see some have drilled throug hthe back and some through the side. Also how to route line for both methods. Thanks for the help in advance. Last edited by chapster; 02-21-2010 at 12:13 PM.

02-21-2010, 03:21 PM	#2
umwtnt Registered User Join Date: Feb 2008 Location: Williamsburg, Va Posts: 226	Re: Front air line routing I drill down thru the frame and front crossmember and use a thru-frame fitting that is used for DOT hose. The type you find on OTR trucks. You push in the hose and it stays secure. I believe I found them at fastenal. I thought I had some pictures of the process but I don't and the truck is in florida right now and I'm in NC. The thru-frame fitting is simpler to a brake thru-frame fitting but for air lines. I wish I could help you more. Good Luck __________________ The more I learn, the more I find out I don't know. 69 Chevy SWB w/67 front end 4 wheel discs 468 BB 700R4 Bagged Coming around slowly

02-21-2010, 03:34 PM	#3
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: Front air line routing Thanks for the info umwtnt. I will have to keep looking as I understand your concept but will have to visually see it. Thanks again, __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

02-21-2010, 03:42 PM	#4
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: Front air line routing You can drill a hole and install a rubber grommet around your DOT air line to protect it. I routed my line on the inside of the frame along the passenger side. One line to the right front bag, and one line across the inside of the crossmember to the left front bag. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

02-21-2010, 03:55 PM	#5
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: Front air line routing Hey Keith, Did you drill your hole in the back side of the crossmember __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

02-21-2010, 04:39 PM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: Front air line routing The back side will work. I drilled mine in the top of the crossmember underneath the motor mount stand. I have 1/4" airline so it bends easily. Plus I had my lower a-arms completely off, so it made it easy to drill the holes from the bottom up. I just wanted my air line away from heat or anything that would snag them. It mainly depends where your air management system is located. Mine was at the right rear corner of my blazer. Routing lines is just personal preference. Just,... keep them away from heat and sharp edges. And secure them so the don't flop around. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 02-21-2010 at 04:39 PM.

02-21-2010, 05:52 PM	#7
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Front air line routing check out my build thread. I ran mine about a month ago. easy, clean, and SAFE. __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson

02-21-2010, 08:49 PM	#8
chapster Registered User Join Date: Jul 2005 Location: .. Posts: 455	Re: Front air line routing Thanks for the info guy's, tcb-1 your build thread also helped alot. What is your front tire diameter? __________________ 1967 GMC shorty Parts Pile: NoLimit, Accu Air, Kore 3, Matts Classic Bowtie, March Performance, Lokar, ScottsHot Rods, Vintage Air, American Auto Wire, Circle D, Accu Air, Borla, Budnik, Ididit, One Piece Windows, Doug Thorley, Pypes, AutoLoc, Porterbuilt, CPP, Dynamat, Dakota Digital, Fesler 1968 Chevy c10 shorty Stepper (Patina LS project) 1967 gmc custom Long Box (Farm Truck Project)

02-21-2010, 09:32 PM	#9
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Front air line routing pm sent, chapster... __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson



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