I've been plagued with the rumbling, rattling noise since day one, coming from the sloppy bolt fit on the lower front shocks. I put on my 3rd set of new shocks, and like a fool, bought new, original "Dodge" bolt's & flag nuts. Well that was last week, and today I threw all that crap away & fixed them for good. (I hope) I bought some grade 5, 3-1/2 X 9/16 fine thread bolts, some 1/8" hard flat washers, nuts & lock washers. These bolts are smooth sholdered, whereas Dodge's are threaded almost to the head. The smooth ones I got fit through the lower shock bushing much better, and I was able to tighten them as far as I could with my impact wrench without stripping the nut. I also found some thin, flat shims that fit around the steel shock bushing, up against both sides of the rubber gromet, to take up the slack in the channel the shock fits into. When I tightened them up, the channel pulled up tight against the shims & rubber. I also replaced all 4 of the rear bolts with the same size stuff, and took it for a spin,... ... BIG difference. I'd done this with shock set #2, but wanted to put orignal bolts back in, what a mistake that was.