Since all the cool kids are putting electric fans in their trucks I thought I would give it go. Now I originally bought this set up for my 10 year in the making XJ Jeep Cherokee build, but going different route now so decided to put in the 50. Here is what I got, the fans and then the controller. http://www.kmjent.com/cart/dual-11-e...e-twin-hd.html; http://www.jegs.com/i/Derale/259/167...arentProductId= Now my only question is should I or should I not run a 70 amp relay with this set up. Since I have stated in other posts I am not an electrician. I also plan on upgrading the alternator to at least the 90 amp alt from a Caravan as suggested by Fordubishi in another thread. Any down sides or problems I should be concerned about. Maybe other than freezing the motor.