Randy,
What might be confusing is the doubler plates are just something solid to attach the tabs that hold the cross member. Then those plates get connected either directly, or indirectly to the seat pans that weld into the car. The seat pans are really stiff and realistically the body has to be designed for a couple of 300 lb people worst case (just guessing) so they can't bend with a few hundred pounds of load. The seat pans go almost all the way out to the rocker boxes, the main structure of a unibody car. So if the pans could take a couple of heavy passengers they can support the transmission tail housing. The trick is to make all the layers of metal work together, sort of mimicking a standard cross member.
I suppose there is some risk with this idea that the floor could flex too much. But there are a half dozen high horsepower cars out there doing it this way. So I am willing to take the risk to learn something. Worst case add a crossmember later if this doesn't work out as expected.
I guess that's a lot of words to say " seems like a cool idea I am willing to try"
Scott
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Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
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