I need to install a waterpump in my 1996 explorer engine 4.0. I understand I need a fan clutch tool and Autozone loans them out. Are there Duralast waterpumps decent. I would like to purchase from them if they loan out the tool. After 208k miles(original owner) it finally started leaking. I converted car to dexcool after it was about 3years old. I believe the low silicates in dexcool contributed to its longevity.