The first 745 Masseys had a cast frame forward from the transmission housing and motor bolted solidly to it with the steering box below the radiator.
The S model had a fabricated frame bolted at the same points to the rear section, with the steering box at the rear and motor rubber mounted.
There must have a weakness as later ones had the joining plate going to the top of the rear housing with an angle brace.
We had trouble with cracked fuel lines, radiators and drive couplings due to the S model's engine movement.
David.
