Thanks Colin, yea uprights where my design, based of the original hawk ones, but upgraded to take the bigger bearing of the alfa drive shafts, also changed to bottom mount layout. They were pretty light as they are fabricated, so lots of hollow sections
. Here's the video of making them
https://youtu.be/NNoDYC5KLGwYea I think the original hawk rear upright design was done more for packaging, rather than dynamics, will certainly be interesting to try out the changes