awful sound when hitting bumps - cant determine the problem

hey guys
well after ffrying my starter relay while welding in some support plates at the torsion bar on drivers side, i took the car for a test drive, the crunching when hitting a bump is marginally better but still very prevalent. i only boxed 2 /3 rds of the torsion bar area so i will do the other 3rd this week and give that a go.

i also had to have my f250 wheel bearings in front redone. i say this because i took the truck to work today and the truck now rides much "softer" over the bumps. i got to thinking - since the mechanic replaced th inner/outer bearings on both pass/drivers sides on the truck and now the truck rides more smoothly, could the same issue be whats causing the dart to sound awful over bumps? perhaps the fully-boxing of the torsion bar area will fix the prob, but if not i need to figure out what else could be the issue. any thoughts?