This link recommends the Safe-T-Plus because it is both a stabilizer and a damper. It will improve steering, but its primary function is to prevent the MH from ripping the steering wheel out of your hands during a panic situation.
I would ignore the mileage on the odometer and recommend taking it to a heavy truck shop and having all of the steering examined (rods, joints, box, etc) and replace parts as needed - but use better that OE parts.
For me the handling problem was with the
ball joints. They were shot. Replacing them made a big improvement in handling.
