i have a 02 ctd 2500 4X4 stock well i have a straight pipe but the truck is stock for the first time i tried to preload it to lay some rubber and i never do that but i need some new tires anyway but it is like the truck wouldent pre load i dont know if i did it long enough or what i preloaded it for like 5 seconds or so is there somthing wrong with my truck or did i not give it enough time?