I have a 2002 Ram 1500 quad cab long bed with the 5.9, 4-speed auto, 3.92 gears and towing package. I remember someone saying on here one time that these transmissions will be destroyed if you tow/haul anything with O/D on. Well I have towed some fairly heavy loads before in the 5-7k pound range and I turned the O/D off because I knew the tranny would be under a lot of stress with the heavy loads. Well I just bought a 6X14' utility trailer that weighs about 1200 unloaded and I will be using it mainly to haul two, maybe three four wheelers and for occasional scrap hauling and landscaping work. I imagine I will be towing mostly in the 2-3k pound range. So my question is do I need to turn the O/D off when towing such a small amount of weight? I love the way the truck performs with the O/D off, but anyway I can try to save some gas mileage on this gas hog without destroying anything I will definitely do. Thanks for the help.