I have a 2007 Ram 1500 4x4 Mega cab. For those of you that are familiar with the Megacab you know that even though it is only a 1500 it has solid front axle like 2500 and 3500 rams. My dilema is that when I put the 2 inch leveling kit on and the 315 tires when I hit bumps on the highway my whole truck shimmiedextremely bad sometimes to the point of me having to slow down to 25 mph om the highway. Now I knew that I wanted to put the 2 inch taller springs on and the 2 inch rear blocks next so I did and obviosly it still shimmied extremly bad so I had the truck realigned and installed the dual steering stabilizer. It is somewhat better but it still shimmys pretty bad only when hitting bumps going over60 mph. If the highway is smooth it's perfect but if I hit any type of bump it's reallly bad. I talked with 4 wheel parts wholesalers and they said maybe I need a pitman arm drop due to the springs and spacers. Okay I'll buy that except it was happening with only the coil spacers and 315's as well. Sorry about the novel here but I need help. Any Suggestions?