after much work sectioning, lengthening, making taller, here is the dodge caravan seat. This one is about 5 1/2" wider on the base and back and 3" taller plus 1 1/2" of foam at the top to increase the height further. I even extended the suspension, which use springs and tension rods across the span. I think this was ten hours of work in just re-sizing the seat. I did the sectioning outboard of the mounts, which fit the F1 cab pretty well.