1976Blazer76
1/2 ton status
It is UHMW. It was flat to start with but I rolled it to the correct ID.
my first one didn't want to hold shape so this round I over rolled it and it came back to the right shape. I was thinking the same thing about a countersunk hole but there just isn't enough meat for it there. Each piece of the overlap is only a 1/4" thick.
I am thinking about trying yet another method...
Try counter sinking the holes for flat head screws. The nuts can stick out into the tires without any problems. Just add more bolts if your not comfortable with the strength of the material left. You can also make the over lap portion longer so you could put a zig zag bolt pattern into it.
If you don't know what I'm talking about I can draw it up in Autocad and email it to you.

Bringing this back up. Any updates?![]()