whell, my pump is clicking, it sounds like a rod knock , or detetanon at idle, but when i take off the belit it stops, and there is alot of freepay when i turn the pully by hand, so here are my options, Auto zone sells a "rebuild kit" for $12, i dont know what it includes, but im good at making crap work, OR a complete new one for like 53 dollars, what would you do, and has anyone ever rebuilt one?