i did my lift and drive my truck for a couple of month whitout problems and then suddenly one day i start to get DW at 45 mph when I hit a bump and also in plain pavement
i check al components from suspension replace tre's and get rebalanced my tires check the caster , and camber
i change the stering stabaliser for a stock new one the DW no ocurr on bumps but did on plain
i get a new one Heavy duty and the Dw gone
I hope this work for you