What with the other gussets you added to the chassis, I'm surprised you didn't just add in another upper arm mount to put the control arm in double shear. I had considered this route, so I wonder what your thoughts would be.

Something like this is what I thought should be feasible with a couple of brackets and some trimming to clear the front roll-cage strut: single position upper a-arm mount
Or this: upper a-arm mounting bracket

I figure such a mod is at least as strong as what FFR is expecting R-cars to run and should be a good deal stronger.

Thoughts?

-j