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Re: [GMCnet] Front end geometry [message #170893] Sat, 26 May 2012 13:12 Go to previous message
KB is currently offline  KB   United States
Messages: 1262
Registered: September 2009
Karma:
Senior Member
I entered those arm length and frame/hub distance numbers in the website and got completely
different results. What am I missing? Here's what I got with horizontal, and 3 inches (76mm)
down and up:

http://www.gmcmhphotos.com/photos/member-galleries/p44314-one-ton-geometry.html

For what it's worth, our coach handles great with the one ton front end, even with a
really sloppy attempt at alignment. It was terrifying to drive before, now it's not.

confusedly,
Karen
1973 23'
1975 26'


> I went to the website and entered the dimensions for the 1 Ton upgrade using these numbers:
> Lower control arm length 14.75" or 375mm
> Upper control arm length 9.75" or 248mm
> Distance between mounting points on HUB 11" or 279mm
> Distance between mounting points on chassis 9" or 229mm
>
> The upper control arm is angled up 12.75 degrees when the
> bottom arm is level.
>
> The camber angle has a huge change from - 5 degrees to
> +2.5 degrees when moving 3 inches up to 3 inches down.
> That's 7.5 degrees of camber change

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Karen 1975 26' San Jose, CA
 
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