Both of my trucks ('28 half ton and '27 one ton) do not have the metal battery access doors.

You lifted the rear floor boards out to access the battery. They are attached to each other by two cross pieces screwed to the bottom. See the attached pics of Justin's floor boards.

I don't remember if Lurch had two or three boards that lifted up. I do remember that Lurch's floor boards were tongue-in-groove, whereas Justin's floor boards are butted together.

Another feature that is different between my two trucks is that Lurch's floor boards were tapered (not as wide towards that front and wider in the rear).

Yesterday, I talked to two guys about the floor boards in their trucks. One truck is an LO and the other is an LP (both are 1928 one ton trucks). Both of them have a piece of plywood for the rear 'floor board' and both of them have the metal battery access door. One of these guys made that change and the other bought his truck that way. Either way, I believe this change is not true to the original.

These modifications certainly make it easier to get to the battery, but are obvious additions that are not stock.

IMHO, if you have to lift up the floor boards to check the oil level in the u-joint area, you might as well keep the original configuration to get to the battery as well.

Cheers, Dean