Thats the answer I was looking for, it just makes sense! Thanks for the extra info on the diode packs, and the battery! Going to purchase both - alt and batt, now I don't ask alot of questions at the parts stores because most of the time their full of it - so - do I need to take the new alt to have the gel diode pack installed at alt shop or can I buy it with it already installed? Thanks again for your time!