Oops, I thought this image failed to post, so I started a thread here.
http://www.chiefdelphi.com/forums/sh...threadid=85872 hopefully we can concentrate the discussion there as I have several other views posted.
however i will respond to the previous post here for clarity. It is 1/2 aluminum, backed with 30x30 flexmation, it is strong enough, I have experience with this style of fabrication. Basically the flexmation take most of the stress side to side and the aluminum is quite thick vertically at all of the critical, weight bearing points (ie. at the wheels) of the aluminum plate itself.