hi Blue, photo taken as best as I can. Yes its only bolted through the stainless sheet but this has lasted for 15-20,000 miles without problems but I have now improved it as I said by bolting through both verticals and clamping the 2 sides together, 60mm diameter thick washers have been fitted under the bolt head and nut to spread the load. I have put up other photos showing the parts I used for my mod, also showing the reinforcing I have done to the lower shock mounts as I was told that this bottom folded channel has been know to bend (I think it happened when using the original high poundage spring rates which put a shock load down on to it)
Rob