Punchy Dan:
Robert were they avalible in the EC range ? I didn’t think so but I could be wrong , I remember BJJ cutting up a late air suspension model E series up which had a Samt .
One day I had to return a SAMT E Seires to Peter gilders yard but didn’t have time to understand it. The following year I was doing Spain in a very early SAMT EC12 pre production truck, L15 JRT, one of Two in the all blue Jordon racing colours . It was far from perfect but I liked it and it worked well. There was a little screen telling me how many gears I could change up and how many down. It worked well behind the big rolls but I have not seen another since