eHow - Carshttp://www.ehow.com/guide_7-http://www.ehow.com/guide_7-cars.html.htmlwww.ehow.comHow to Use a Skids & Rollers for a Trailerhttp://www.ehow.com/how_2326716_use-skids-rollers-trailer.htmlLearn how to use skids and rollers to keep a trailer in good working condition in this free trailer maintenance video. Published on 6/16/2008