Hi, all the threads i read so far say that the cheapest way to repair a bad water pump on a 1jz with hydrofan is to replace with a 2jz water pump and im trying to understand why. I been doing the math and a flex electric fan will cost like 400$ , 160 for pump and 60 bucks for pulley. =620$ and maybe add like 80 bucks more for fan shroud how is that cheaper? Can any one help me with this what other altenatives do i have?Please post the setup you used to fix this problem -thanks