robert1952:
… I do believe the S40/S41 was actually the same Motor Panels Mk4 metal cab that was introduced in '68 at the European full width of 2.5m. The short version was used by Seddon, ERF, Guy, FTF and RABA. The tall sleeper version was used for the ERF ‘European’, Scammell Crusader and French Mack. Foden’s short day-cab version ranked along with the Seddon and Guy. The S41 had a more pronounced snout to accommodate the Gardner 8LXB and the 14-litre ■■■■■■■■ Robert
The Seddon and Guy used the narrower version, the same as the ERF MV. Was it this or the wide (MW, Crusader, Mack, FTF) one which was on the S40? It’s difficult to tell. I think the S40 might have the narrow version, but with a split 'screen, although I am far from sure.