Got a set of the blue ano pulleys from FRPP and need to know what all I need to make this work. It seems that the new pulley is a LOT lighter than the stock pulley. I realize that the u/d is alum., and the stock is steel, but I can't help but think that I'm missing the balancer weight if I change to the u/d pulley. Also, I need to know what belt I would need to take up the slack from the new pulleys, as it gives me about an inch too much belt for the tensioner to handle. Anyone have a part # for this belt, or a cross-reference? And if I need to add a balancer onto the new pulley, where can I get one? Thanks in advance.