I bought my 2005 1 ton in October 2004, I added a few mods to it, Edge Easy, a BD overdrive lockout, 305 tires, and 2" front leveling kit, all has been removed. When I first bought the truck I only towed the boat, then we recently bought a 35" 5th wheel, that is when the trouble started. The trans was toasted, I think the BD overdrive lockout did it, when it was off when driving with the 5th wheel it wouldn't go to overdrive, after I removed it all was back to normal, I will never install another one, then the Edge Easy would cause the engine to surge at quarter throttle, thats now gone, problem is not there any longer, the 305 tires are to big with 373 gears for heavy towing, I am back to 265 tires, much better, so I guess I will just leave the truck alone and forget about mod's.