I did the same ... completely removed the supports between the bulkhead, fire wall and the 2 rockers .. I used 18 ga sheetmetal ... and with the roll cage and reinforcing the rockers with plate steel .. which I have yet to start ... and added 2 box frames under the fire wall and bulkhead ... basically I duplicated the same set up on my later 9138. This is not complete ..but its 1/2 way there.
Ron
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