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Date:         Fri, 1 Dec 95 10:22:22 EST
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         John Anderson <ja@coe.wvu.edu>
Subject:      Re: Vanagon lifting,

Derek, the other thing that concerns me about raising the lower mount by attaching something to only the current mount point is this. I too thought well why not just even do something like this, weld another circular tub the same size as the gurrent tube to the bottom of the current tube (tube that holds the mounting bushing). Since current one is welded onto the shock, a good quality weld would be more than sufficiently strong. Then further as the stress is now transfered to that current tube which is hollow, press in a solid steel bushing to support load, and maybe gusset on each side by welding some 1/8" or so strap up over both on the sides. problem is this, whatever you do as long as it only attaches to the current mounting poin, NOT the shock tube, relies on the strength of the current welds between the bushing tube and shock tube. Now as most loading is tension or compression and mostly compression at that not an immediate problem, bu whatever side loading exists (which admittedly should be nearly none as side positioning is handled by the suspension geometry) is trying to bend or shear those current welds. This worries me as by adding something to the bottom you increse the torque arem to those welds increasing the stress on them, and frankly they are not that impressive to begin with.

anyway to detail I imagined this

| | | | | | ____________ / \ <- this the critical area of current welds / \ | | <- the old bushing mount filled by solid steel or \ / boxed in by welding plates over sides \______/ <- welds here need be no stronger than origional / \ / \ | | \ / \______/

John ____________________________________ Derek Drew New York, NY drew@interport.net DerekDrew@aol.com (backup; rarely checked) '90 Syncro Westfalia... ...seen off-road at http://www.teleport.com/~des/vw/drew/index.html


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