Pam's Jamaican Blue Baby

Front frame rails have been capped already so they are beefed up 2x over stock. Yea...I need to sandblast the mechanics once I get the fender wells out....looks real scaly and I'm sure there is more issues below the nasty surface.

I overlapped the new/old floor pans so there is about 1/2" of metal....I could just leave it and seam seal the bottom but since I have a welder and since the car has thin spots I want to close up the gap below so no moisture can get between my new pan and the old floor. I feel that's the right way to do it.

Ive seen it done without welding the bottom so I'm sure it can be done either way. I really want to stiffen up the chassis on this old girl so after the pans are completed I need to install some frame rail connectors.

You can see in the first pic....at the left side you can see the gap I am talking about. It's not all the way around the pan, just in areas. I also have issues, looking at pic #2 you can see on the left rear pan there is sub floor metal missing vs the right rear. I need to clean up these areas and weld in some patches to tie into the new pan.

I don't know....I do not have a lot of experience doing this so I just want to err on the side of caution.

You tell me...can I or should I just caulk up the gaps and undercoat it....be done with it as it is?

Mop