I searched the forums and didn't find this info so I thought I'd share. The steering in my 95 B2500 is fine but I know it can get sloppy. I went searching for stabilizers and found this small company. Steering Box Stabilizer
I called and talked with the owner and he told me that he had originally designed and fabricated steering stabilizers for the ram 4x4's death wobble. He then started getting requests for a stabilizer for vans.
He ended up making a couple and they are great quality. Makes me feel much better about long trips and it feels much more solid. $140 including shipping was a great deal for my piece of mind.