I was able to have the privilege of using my Uncles old school belt driven lathe. It took me a couple of hours to get set up and remember how to use one of these from my apprenticeship days.
After 3 hours of messing about I finally produced these 12mm aluminium spacers. Trouble is they slid into the rubber bush more that I had measured for which sat the body of the shock just 2mm away from the upright of the beam.
I also calculated that the off set to the lower trailing arm mount to the the top mount is 35mm and I'd need to take the shoulder of the lower mount out by 12mm to keep the shock sitting vertically.
Or I could buy thinner Spax shock with swivel ends similar to what I have fitted to the back IRS.
