So it sounds like one would help. The question now is which one. Which would get your recommendations? The Roadmaster RSSC Reflex Stabilizer Unit or the Safe-T-Plus unit?....
New tie rod ends, drag link, caster/camber sleeves for +5 caster, tires adjusted for weight (Helped a lot), and a Safe-T-Plus stabilizer. The stabilizer helped with the last inch of left to right play in the steering wheel. The steering use to feel like the front tires were not on the ground. Now it all feels normal like a large SUV or Van. I think the caster at +5 also made a big difference. This is on a 1998 Ford E-350 23' chassis.