Absolutely. The bases and the floorboards themselves definitely need reinforcement. Personally I would suggest new bases fabricated out of square tube. I don't know that it takes Finite Element Analysis or whatever you engineering types do. Just good old American overkill with lots of heavy gauge tube is what the majority of small time race teams have done for eons. Something like this I crawl around factory vehicles to see what they have and then build mine 3x stronger.