air bag help, truck bounces alot - The 1947 - Present Chevrolet & GMC Truck Message Board Network

owa1000 · 05-10-2010, 01:16 PM

So I have a 67 c10 that im currently working on, here is the set up. Its a scsb 350 and 400 trans, the front set up is 2600 series bags with ebay plates on the control arms and 3" drop spindles. Right now it has no sway bar but when test driving after the bags were put on it would bounce alot when aired out. From what I have read it should bounce hardly anything when aired down. Or do you guys think it could be the shocks that are bottomed out. Well any help would be appreciated, thanks everyone

aggie91 · 05-10-2010, 01:27 PM

First let me say that I am not a "bag" guy. But, if it is "aired out" wouldn't that mean that it is sitting on the bumpstops or bottomed out? If it is, there is no suspension to soak up any bumps in the road and depending on your tire's sidewall and pressure in the tire, your ride would bounce on any bump you hit...

Am I off base here?

owa1000 · 05-10-2010, 02:05 PM

That makes scense, I might Have just read wrong before.... Thanks for the input though

**michael bustamante** · 05-10-2010, 02:15 PM

did you relocate or use lowered shocks?

8mpg · 05-10-2010, 02:43 PM

You shouldnt be driving the truck aired all the way down. The whole trucks weight will be resting on a fully collapsed bag. You basically have no suspension when you do that. It really should only be laid out when you park it. You need to determine a ride height and use it when driving.

owa1000 · 05-10-2010, 03:18 PM

The shocks are in stock location, and you have a point about driving aired out, thanks for the help guys

SCOTI · 05-10-2010, 05:10 PM

The lower the air pressure, the less 'spring' rate the suspension will have. There will be a cross-over point where the shocks will be doing more work than merely controlling susension occilation. Once that happens, you'll really start noticing the 'bounce' (same thing if the shocks are weak @ normal ride heights).

andrewmp6 · 05-11-2010, 06:25 AM

Yeah no air= no springs it will bounce around if you want it to have a super low ride height you need a dropmember.

05-10-2010, 01:16 PM	#1
owa1000 Registered User Join Date: Mar 2010 Location: Edinburg,tx Posts: 18	air bag help, truck bounces alot So I have a 67 c10 that im currently working on, here is the set up. Its a scsb 350 and 400 trans, the front set up is 2600 series bags with ebay plates on the control arms and 3" drop spindles. Right now it has no sway bar but when test driving after the bags were put on it would bounce alot when aired out. From what I have read it should bounce hardly anything when aired down. Or do you guys think it could be the shocks that are bottomed out. Well any help would be appreciated, thanks everyone Last edited by owa1000; 05-10-2010 at 01:19 PM.

05-10-2010, 01:27 PM	#2
aggie91 I'm just glad to be here! Join Date: Jan 2008 Location: Longview, TX Posts: 4,788	Re: air bag help, truck bounces alot First let me say that I am not a "bag" guy. But, if it is "aired out" wouldn't that mean that it is sitting on the bumpstops or bottomed out? If it is, there is no suspension to soak up any bumps in the road and depending on your tire's sidewall and pressure in the tire, your ride would bounce on any bump you hit... Am I off base here? __________________ Karl 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square

05-10-2010, 02:05 PM	#3
owa1000 Registered User Join Date: Mar 2010 Location: Edinburg,tx Posts: 18	Re: air bag help, truck bounces alot That makes scense, I might Have just read wrong before.... Thanks for the input though

05-10-2010, 02:15 PM	#4
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: air bag help, truck bounces alot did you relocate or use lowered shocks? __________________ 1967custom

05-10-2010, 02:43 PM	#5
8mpg Registered User Join Date: Aug 2008 Location: DFW, Texas Posts: 389	Re: air bag help, truck bounces alot You shouldnt be driving the truck aired all the way down. The whole trucks weight will be resting on a fully collapsed bag. You basically have no suspension when you do that. It really should only be laid out when you park it. You need to determine a ride height and use it when driving.

05-10-2010, 03:18 PM	#6
owa1000 Registered User Join Date: Mar 2010 Location: Edinburg,tx Posts: 18	Re: air bag help, truck bounces alot The shocks are in stock location, and you have a point about driving aired out, thanks for the help guys

05-10-2010, 05:10 PM	#7
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Re: air bag help, truck bounces alot The lower the air pressure, the less 'spring' rate the suspension will have. There will be a cross-over point where the shocks will be doing more work than merely controlling susension occilation. Once that happens, you'll really start noticing the 'bounce' (same thing if the shocks are weak @ normal ride heights). __________________ 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.*

05-11-2010, 06:25 AM	#8
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: air bag help, truck bounces alot Yeah no air= no springs it will bounce around if you want it to have a super low ride height you need a dropmember.



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