replacin axles bearings and seals, need alittle help

Well I've got my new leaf springs installed, housing is installed and pumkin is in. But Before I slide in the axles I have a question about the gaskets:

I'm using new axles with green bearings installed (from Dr. Diff). I only received the paper/composite gasket for where the housing backplate mates up with the axle plate, but I've read on other sites that I should also be installing a thin steel gasket? (or rubber coated thin steel)
Does anybody know the correct gaskets to install in this situation? Thanks!