1940 Chevrolet Battery + box Dimensions

[Lionelgee]

Hello MLU people,

Does anyone have the dimensions and product code of a new 6 volt battery which suits my 1940 Chevrolet-Holden? Were the Chevys a + or - earth? What sort of cold crank capability should I be after for the battery? My truck did not come with a battery so I have no idea of what it looks like.

Also would anyone have the dimensions of the battery box as the one in my truck is reduced down to being part thereof? It would be great to see some photos of a battery box for the truck too.

My truck also has a flap in the floor of the cab which grants quick access to where the battery used to go - was this standard or an Army adaption?

Kind Regards
Lionel