

I think those short floor supports are called outriggers. Cutting a little off will not harm the structure considering you are adding stiffening with the mounting brackets.View attachment 44627
The rails take three bolts but I've left out the middle one on each rail in this diagram for simplicity. The bolt for the rail closest to the driver's seat has a stiffener almost directly underneath (but slightly offset) that is in the way, although this stiffener ends before it gets to the other rail (it's weird, this is the only stiffener on the floor of the bus that doesn't go all the way to the wall).
I think I am going to cut this stiffener back so that it's not below the inner rail either, and then run a third angle steel underbody bracket between the two rails. This one may be wider than the other two (maybe even running out to the wall) and I'll also bolt it to the floor. Like so:
View attachment 44629
I'm not going to be welding anything for this mounting, it will all be 1/2"-20 Grade 8 bolts and nuts.
I think that I would want it to stop whatever was making it shatter, so I would keep worrying.
They're yours if you want them (I'm not reinstalling them because these windows will be fixed in place). The two holes in them are exactly 3.5" center-to-center.
View attachment 44626
Welds are looking better.
For those tabs on the floor (for example) if you can see the other side of the metal they're welded to -- you can get a good idea of penetration by the color/heat pattern showing on the back side of the metal they're welded to.
Your bulkheads coming along -- If you're still doing a layer of expanded metal mesh you can consider adding an entry level lock to the door for increased security of your living space...
I do like your progress ... and really dig the matching curve. What was your technique for forming the curve?
Great work! I agree you are getting better at metal working and welds looking better. In my opinion there is something magical about taking a flat piece of steel and manipulating it into something you want/need .. keep it up!!




Easy to grind off the tack, but I should maybe listen to myself occasionally.
Thanks. I think one of the big parts of my welding improvement is that I'm doing a much better job of prepping everything down to bare metal now. When I first started welding floor patches in the back, I'm not sure I even did any prep at all, just patches onto rust. In fact, I'm really trying to fight the urge to redo the whole floor back there with the 4'x8' sheet of 14 ga. I have in my shed.
I'm thinking of all the people who bought prison buses and tore all that metal cage out.
That's exactly what I've been thinking as I've been building this.