Back in 2007 after our rig was a few months old, I took it to a truck/RV suspension shop to address handling issues. One of the upgrades was replacing the stock steering stabilizer damper with a much bigger Safe-T-Plus version. It was worth the money for the improvement it made, but I don't know if something more affordable may have been just as effective.
As I recall, our original black stock steering damper and shocks all had something stamped into them implying "Made For Ford by Monroe".
Reiterating that the replacement Bilstein HD shocks I installed last year 2018 have been awesome.