I just replaced my belt-driven fan on my 1995 Cheverolet 1500. I used two 16" fans from the auto part stores, and the relay has burned out because I bought the wrong equipment. The best thing to do is to buy from
http://www.flex-a-lite.com/ this company was just recommended to me by a professional auto mechanic. They will help you select the proper equipment (probably a kit) and they will have instructions Im assuming. I suggest them because more than likely if you buy from auto part stores like I did, you will have to guess which equipment is right for your truck because no one at the auto part stores that I have been to are familiar with or have completed this project despite the fact that
they sell the equpipment