Another question, I was looking at the torsion set up you have and know that others have made there tanks the same way, but would like to know if anyone has a complete assembly (less spring of course) that has not been installed in their tank? Or maybe some drawings of how it's assembled? I know the nut and bolt that holds the end of the spring to the inside of the tank, but from the bolt / pin that comes in from the outside of the tank from the support arm and everything attached to it is what I'm really interested in.
Do you have someone weld a nut onto the bolt / pin to mount the bolt to that holds the end of the spring or is there a locking collar that all ready has a threaded hole or just something else?