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 > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-11-2009, 09:40 PM   #1
nuke1
Registered User
 
nuke1's Avatar
 
Join Date: Jun 2007
Location: Saskatoon, Saskatchewan,:
Posts: 2,901
Air bag size?

Hey guys, i am wondering something, what size of air bags are you running on the front of your truck, i want to use the 8" on the rear, and thinking same or 7" for the front. Thankyou. James
__________________
James
1968 GMC "HAVOC"
1986 GMC "Frank"
J.J.R.H. Design & Consulting

My 68`Rebuild "HAVOC": http://67-72chevytrucks.com/vboard/s...d.php?t=316300
A 58' chev build thread: http://www.67-72chevytrucks.com/vboa...d.php?t=311238
1969 Camaro Pro Touring http://67-72chevytrucks.com/vboard/s...61#post3513361
Swiss Cheese: http://67-72chevytrucks.com/vboard/s...d.php?t=384390
Adjustable Trailing Arm How-To: http://67-72chevytrucks.com/vboard/s...d.php?t=321100
1968 Ford Farm Truck: http://67-72chevytrucks.com/vboard/s...=1#post6555587
nuke1 is offline   Reply With Quote
Old 11-11-2009, 09:46 PM   #2
Spray-Bomb
Texas Big Wig
 
Spray-Bomb's Avatar
 
Join Date: Jan 2007
Location: Mineola, Texas
Posts: 5,620
Re: Air bag size?

Unless you have a C30 & plan on towing a 8" bag is too big for the rear

On the front, a 7" bag is what is commonly used & I havent had any problems with my Slam Specialties RE-7s

In the rear, I had a set of RE-7s & replaced them with a RE-6 equivalent, cuz the 7's were just too big for the job... Not that there isnt enough room just over kill & I was having to run really low pressure in them for them to be at the correct hight
__________________
Just not low enough...
-----------------------------
Sinister

Killer
Spray-Bomb is offline   Reply With Quote
Old 11-11-2009, 09:48 PM   #3
kev2809
low n' slo
 
kev2809's Avatar
 
Join Date: Mar 2009
Location: rosenberg, texas
Posts: 5,175
Re: Air bag size?

dominator 2600 (8") front and rear...havent rode on them yet but they get some really good lift
__________________
67 1/2 ton Suburban - Project DRGNWGN. Build thread

-_--_--_ _________
_--_-_ -/____|__|__\__
,.,,,.,.,,.,|_O _______ O_]
kev2809 is offline   Reply With Quote
Old 11-11-2009, 09:58 PM   #4
nuke1
Registered User
 
nuke1's Avatar
 
Join Date: Jun 2007
Location: Saskatoon, Saskatchewan,:
Posts: 2,901
Re: Air bag size?

Quote:
Originally Posted by Spray-Bomb View Post
Unless you have a C30 & plan on towing a 8" bag is too big for the rear

On the front, a 7" bag is what is commonly used & I havent had any problems with my Slam Specialties RE-7s

In the rear, I had a set of RE-7s & replaced them with a RE-6 equivalent, cuz the 7's were just too big for the job... Not that there isnt enough room just over kill & I was having to run really low pressure in them for them to be at the correct hight
Question, what kind of pressure for the rears did you run with the 8's versus the 7's and what was the ride height of the bags when normal drivingg roughly, thanks.

Quote:
Originally Posted by kev2809 View Post
dominator 2600 (8") front and rear...havent rode on them yet but they get some really good lift
Thanks, just curious about pressures now i guess, for front and rear at normal ride height, of bags.
__________________
James
1968 GMC "HAVOC"
1986 GMC "Frank"
J.J.R.H. Design & Consulting

My 68`Rebuild "HAVOC": http://67-72chevytrucks.com/vboard/s...d.php?t=316300
A 58' chev build thread: http://www.67-72chevytrucks.com/vboa...d.php?t=311238
1969 Camaro Pro Touring http://67-72chevytrucks.com/vboard/s...61#post3513361
Swiss Cheese: http://67-72chevytrucks.com/vboard/s...d.php?t=384390
Adjustable Trailing Arm How-To: http://67-72chevytrucks.com/vboard/s...d.php?t=321100
1968 Ford Farm Truck: http://67-72chevytrucks.com/vboard/s...=1#post6555587
nuke1 is offline   Reply With Quote
Old 11-11-2009, 11:08 PM   #5
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
Re: Air bag size?

Quote:
Originally Posted by nuke1 View Post
Question, what kind of pressure for the rears did you run with the 8's versus the 7's and what was the ride height of the bags when normal drivingg roughly, thanks.



Thanks, just curious about pressures now i guess, for front and rear at normal ride height, of bags.
I used 7's on the rear of my 68 w/1.5" blocks. Ride height was set w/the rear axle tube roughly 1" inside the frame/c-section (bolt-in style c-sections). At that height, I had air pressure @ 30psi & the ride was very soft. I would have liked to run more psi for a little better spring rate but couldn't because I didn't want a bunch of 'rake'.

When I started re-vamping the suspension, I swapped to 6's so I could utilize more pressure @ the same ride height.
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote
Old 11-12-2009, 02:19 AM   #6
nastyc10
Registered User
 
nastyc10's Avatar
 
Join Date: Aug 2009
Location: Austin, Tx
Posts: 516
Re: Air bag size?

slam RE-7 front & rear, 70psi up front 30 out back
nastyc10 is offline   Reply With Quote
Old 11-12-2009, 06:37 AM   #7
The Big Green
Registered User
 
Join Date: Oct 2007
Location: Fort Smith,AR
Posts: 1,304
Re: Air bag size?

If you run Doms 2600 bag front then get ready to start cutting the stock lowers, these are massive bags. They ride great and get great lift for big wheels. Slams get 3in compressed, 11.5in inflated, while Doms get 2.7, and tower in at 13in inflated.
The Big Green 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 02:20 PM.


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