Macks in convoy

[Matt]

Hi Cliff
These look like Mack NM-5 or -6 prime movers and quite a number survive in the UK,they were used by the British army and post war many ended up being used as snow ploughs or gritters.I though NM's were petrol engined though?

I used to have the 1942 TM for them but passed it on to a guy who was buying one to restore.