help with car 1930 ford model a?

[big girl]

ok ppl i have ask this before but need more ppl to answer i have a 1930 ford model a sedan what do i need to check and work on to keep it running how do i check the transmition oil pleas tell me in detail (what do i have to move or take a part to check the transmition oil) and what weight oil do i need in the transmition and rear end ppl tell me 90 for both and 600 for both what do i need to put in it pleas any one who can help tell me all you know thanks