Very nice Danny.
I did not have my bar heat treated. The local service would not do it without a specification. I'll contact them again and see if the numbers you provided are enough.
Thought about using steel arms and welding them to the bar but I have a front oil cooler and there are oil lines in the void area. I would not have been able to get the bar in.
I was concerned about using the shock stud because of the length of it's arm. Adding the coupling and the heim joint doubles the effective arm of the bolt. That's why I chose to use a welded on mount for the lower link connection. I'll be curious to see if you get any bending.
I have about 500 miles on my bar and have moved the link to the #1 hole in the bar. I started out with hole #3 but had some oversteer.
Been thinking about a z-bar for the rear and had started the machining, but after furthur consideration I think that the coil over shocks limit the movement of the swing arm more than the original VW design. It may not be needed. Any thoughts on this would be appreciated.