Bucket seat install help needed.

4 dimples in the sheetmetal floor where 4 yellow circles are in the pic. The outboard holes the reinforcements are already under the floor with holes punched in them. On the inboard side theres square reinforcements that need to be either purchased, or made then welded in on the top side. My pic shows it drawn in red. Your floor is stamped for those plates locations for the assembly line workers as is the dimples in the pan for them to drill the holes. You can probably make the plates out of 1/16" flat sheet metal.

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