Electric Cooling Fans

Any input would be appreciated. If you have installed one, are you happy? What was your reason for installing it and expected benefit? How much did you pay for it, and if you installed it yourself, how difficult would you rate the job on a scale of one to five wrenches (one being the easiest and five being the most difficult).

Thanks in advance to anyone who replies?

01 extended cab with 4.8

Have installed a electric fan in my 01. They work great! I currently have a 160d thermostat in and my temp has never been over 165. They seem to be able to take the heat off much quicker. The only problem I had with mine is that during installation, I didn't get it on quite flush with the radiator and it burned the fan motor up. This is something easy to watch for. This is one of the easiest installations that I have done on my truck.