Okay i have experienced the DW with my 4x4 i almost had to change my pants afterward, i already have a list of all the front end parts i intend to replace. I know that spacers make the problem much much worse which my truck does have. From what i read adding caster seems to correct the problem but what are the stock caster specs i can only find them for the 1/2 ton are they same? This is a rediculous problem that DC cant seem to fix i am not one to take chances of injuring myself or anyone else on the road, anyway I also have a very trustworthy alingment guy who will actually take the time to adjust the caster to the specs i tell him after i get all the parts installed. thanks in advance maybe this can help out some other people out there.