1949 Bed compared to a 1946

[Todd68Chevy]

I am in need of more information. I need a bed for my 1946 Chevy project and I have a buddy that has a pair of 1949 bed sides left from a prev. project. I am wanting to know if anybody knows if I can use the front panel, tailgate and floor parts from a 46 with the 49 bed sides without major modifications. When I was looking up new parts, they listed the bed sides from 1939-1953. I do not know if that means the bedsides are all the same or if that is just a generic description. I need it to be skinnier to match the cab and getting the 46 parts for width would help instead of narrowing all the parts. Thanks for any information.