stiff ride and lose steering after coil spring install

[whitehummer]

I recently switched out my air suspension system with coils and a 3 in torsion key lift. I also installed new pitman, idler,tie rod ends. Im running 37s for tires.

The steering was very loose and I ended up replacing the gearbox. The gearbox fixed 80% of the play. Any suggestions on what else to do for a tighter steering.

My other issue is the suspension. When I hit a pothole or go over the smallest bump in the road it feels and sounds like the truck is riding on the frame. I have been looking at stocks online and cant figure out which ones i need. Any advise would be great.

Thanks