Monocoque Structure Around Wheel Well

[ashleyfigs]

Hey all!

We are almost done cutting our subfloor and had a few questions. The subfloor width on our '68 Ambassador is coming in at 88 1/8 inches. We had to reconstruct a good portion of our frame with new outriggers due to irreparable rust damage. That being said, our welder made every effort to keep the measurements of the trailer the same.

As we're lining up our subfloor cuts on the trailer, we're seeing a 3/8" to 1/2" of the subfloor extending past the outrigger on either side. Is there any reason we should be worried about this?

We originally purchased the plastic wheel well cover for our tandem axles, but later found that they don't actually fit (far too short for our outriggers). Back to the drawing board, we are getting metal wheel wells fabricated. We tossed our original metal ones because they were in bad shape and fully intended to use the plastic replacement. So, we are guessing a bit on measurements and keeping our fingers crossed. Are the wheel wells supposed to extend out to the length of the subfloor (slightly beyond the outigger) or only to the outrigger?

Finally, if the subfloor extends past the outrigger near the wheel well how does the belly pan/subfloor/frame/wheel well sandwich keep water from getting in? Am I missing something or am I going to need a lot of sealant to bridge the gap?

THANKS!!