| [GMCnet] 1-Ton Installation [message #152398] |
Sat, 10 December 2011 10:48  |
glwgmc
Messages: 1014
Registered: June 2004
Karma:
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Senior Member |
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One additional "conclusion" I think worth mentioning. Not all of our coaches were going down the road at the specified factory ride height before the installation of the 1 ton front end. We know that rear ride height plays a significant role in determining front ride height. If the rear was low (most likely) or high to begin with and you reset it to factory spec (as you should) after the 1 ton front is installed, the amount your front will need to be raised will differ significantly from another coach even if the torsion bars on the two coaches have exactly the same strength. So, yes, there certainly does appear to be higher torsion bar loading with the wider spacing required to clear the larger rotors on the 1 ton front end, but torsion bar loading and torsion bar age/strength are only one of several factors effecting resulting front ride height.
I am going to ask Jim H. (tech VP for GMCWS) to allow me to set up an experiment at the upcoming GMCWS Casa de Fruta spring rally. As the coaches all come in I would like to quickly measure and record front and rear ride height. That will give us one touch point on how our coaches are now set going down the road. So, whether that distribution of ride heights is a result of torsion bars getting tired, owner aesthetic preference, or just the whim of the last alignment guy, at least we will have an idea of where this sample of the "fleet" is before the 1 ton installation.
That is, unless all this discussion has caused all the owners to go out and reset their coaches to factory ride height, which would be a good thing.......
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
541-592-5360
www.southernoregonguild.org
www.siskiyouguild.org
----------------------------Message: 10
Date: Sat, 10 Dec 2011 04:26:29 -0800 (PST)
From: Gary Casey <casey.gary@yahoo.com>
Subject: Re: [GMCnet] 1-Ton Installation
To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
Message-ID:
<1323519989.27306.YahooMailNeo@web125601.mail.ne1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Someone asked if, after the discussion on ride height was "resolved," that a summary be written. ?I'm not sure it got completely resolved, but as I understand it, changing to the "1-ton" geometry WILL result in higher torsion bar load and hence a lower ride height. ?I think the load goes up by approximately 6 percent, resulting in the ride height lowering by a modest,but significant amount - I'm estimating between 1/4 and 1 inch. ?Some have reported an "unrecoverable" lowering of height but at least one said there was no change. ?For sure it doesn't ride higher after the change. ?And that's about as resolved as it got :-)
Gary Casey?
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Jerry & Sharon Work
78 Royale
Kerby, OR
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