Never considered putting anything on our F350 when we had our Hallmark. Height has way more bearing on sway than weight and with the top down we traveled thousands of miles all over the country with never a problem even in those Wyoming winds. The Stableloads are so simple to add and take so little time, I would try it first with no changes. You might be surprised.
Our hard body Northstar another story. CAT scales weights between the two only a couple hundred pounds difference, but way more sway. I made my own version of upper stableloads for about $20.00, not that it was so bad. it was just that the handling with the Hallmark spoiled us. 🙂
Steve and Andra
2012 F350 6.2 gasser SRW LB
Fab Fours front and rear in case we run into a rhino
2019 Northstar Laredo SC
