I'm looking to convert my truck a 53 chevy 3100 from generator to alternator. I got a Hitachi alternator in my shed that i would like to see if i can use it. The alternator fits perfect with original strap bracket from the generator. I have a good idea how to hook it up from research just my situation is different since im not sure what the output S, L, E, BATT mean. How do i wire it? Thanks in advance.