The original floor board would have had a tranny opening only a bit larger enough to allow the tranny to fit the opening. If it were my project, I would likely cut a squarish donut shaped piece of same gauge sheet metal to allow the appropriate access and fill in the excess space. I’d either tack weld it in place or size the “donut” large enough to overlap, in order to accommodate rivets or an epoxy glue.
From experience I will offer that using a floor covering will make driving/riding in the truck much more enjoyable. These originally came with a jute, insulated ribbed floor mat. The floor board gets pretty warm and the loud road and engine noises will be dampened significantly. If you buy the rubber mat from one of the vendors it will likely come with the rubber mat marked for the various holes that need to be cut for pedal etc. access. I suggest you not trust the accuracy of the lay out on the mat. I discovered many of those marks were far enough off that I needed to make adjustments for better alignment. I ended up making a paper template and transferring the drawing.
Last edited by 46Sparky; 07/29/2025 8:35 PM.
