I'm going to go out on a limb, here...I'd say that the stock is .75" x 1.5" CR flat bar cut to 3.375" long, with a .75" hole. Close??
They are clevis mounts. They measure 1" x 2" x 4 1/2" with a 1" hole. I got stuck with this material last year after a mistake on an order from Ryerson Steel. I only needed a quote on the stuff but later when I placed an order this material was with it, 50 pcs. They wouldn't take it back so the other day I decided to make some tabs out of them to sell on ebay to folks that are making their own bumpers out of the 2 x 4 tubing. These are made long enough to go all the way through. Since I'm not a vendor here I can't sell through the forum but people find ways around that on their own.
That's it! Thanks for looking it up. Already sold some of them. I really thought it would take a while for anything to happen so it surprised me when the email notice came in. Need to get some more of this stuff on there too!
I made some more progress on the tank today. I bought some brass roll-over valves and made some weld in flanges for them to screw into.
Then I needed a way to hold my fuel pickup tube and stuff in place so I cut a 3" dia. hole in the center of the top and drilled 8 holes around that for 1/4-20 screws. Made a ring with the same bolt pattern that size and it got welded onto the bottom side of the plate. I plan to make an aluminum top for it that's threaded to take 2 fittings. One supply and one return.
After that stuff was taken care of I welded the top on. I took some more of Rich's advice on how to weld the seams. I couldn't get comfortable enough to do the welds in one hitch so they got welded in 3"-4" intervals. He calls this "back stitch welding", correct me if I named that wrong Rich. You start on one end and weld then stop. Move away from where you stopped, in my case 3"-4" then start again but overlap the last weld. It worked very well for me. Thanks Rich
I'm looking forward to sealing this up and putting air pressure to it to see if it has any leaks. Also I wonder instead of painting this to spray it with U-Pol Gravitex like I did the bottom of the tub.
Got things sealed up to test for leaks. After getting it all rigged up I gave it some air and ran it up to 15 psi. My gauge wasn't marked good enough to read under 10. I squirted soapy water on every seam. Found one leak. That's fixed.
I weighed this thing today. Anyone want to take a guess? It included the skid plate too. That gets welded on next. I'll check it again for leaks then it'll just about be done. I also think I'll weld a bolt on one of the front mounting tabs to use for grounding the tank to the frame.