MCP vehicles were civilian models which were modified slightly with an observation hatch in the cab roof plus a MG gallows pole plus cut out front mudguards so the fitting of the oversize 18in combat rims and tyres had clearance. Most Chevrolet MCP's had Holden built cabs which differed from the American/Canadian lend lease vehicles by having quarter vent windows in the cab and vents in the cowl sides. Some Aussie vehicles though were left with civilian pattern wheels which explains the different wheel styles with some having dual wheels on the back. Most MCP's were also fitted with a 2 speed rear axle as well.
Lendlease vehicles were also normally higher tonnage rated as the Aussie MCP's were beefed up 30cwt trucks normally whereas the imported ones were 3 tonners often with higher HP motors.
Hope this helps a little
__________________
Cheers
Cliff Hutchings
aka MrRoo S.I.R.
"and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night"
MrRoo says "TRUCKS ROOLE"