The Stovebolt Site Forums The Shop Area Interiors floor & toe board seal '42 1/2 T

What should I use to provide a good seal between the cab, toe board and floor board?

Do a search for "Seam Sealer" there are several types. Some are self healing (waxy when cured) and others set up more like butyl caulk.

Depends on your application.

CASO knows better than I do, but I think the Factory Assembly Manuals shows "non-hardening" seam sealer (which is available in a calk-gun tube); and, I think this is best applied over epoxy-primed metal - then seal/prime and paint.

CASO, would you use the "All-Around" product on the inside joints and the "Fast and Firm" product in the exterior joint, between the upper-cab and lower-cab?

Thanks,

Tim I don't "know' for squat... I'm just opinionated!

Assuming clean metal is what I'm starting with
3 coats epoxy primer underneath and 2 or 3 inside for sealing the metal. then I'd go for the 3M 8656 on the page you linked.
It say's its designed for the seams I believe OP is talking about.
If it is between pieces being bolted/screwed together maybe the 8578.
I made some gaskets for the headlight bucket/grill/fender seam out of a left over chunk of window setting tape the other day. I was pleased with how it worked into the seam with a plastic edger, trimmed off nice. I imagine the 8578 is like that. Great for sandwiching not for filling a gap.
I think the All Around 8500 would be good if your sealing the joints up for paint. Just as long as there's NO SILICONE...

JMO