Depends on the electric fan, some are made to run one way or the other or either way. A lot also has to do w/the amount of room in the engine bay you have and choice. I have ran an electric fan in front of the radiator w/a fan on the motor before & the electric fan was used only during the time where I was in traffic to control the temp & I have ran just either the stock style or electric fan on front or behind the radiator by themselves...Joe
