Just about every F53 has a front track bar but the back will swing back and forth due to the slop in the rear springs and the huge overhang that acts like a lever. This motion is what causes you to have to steer constantly. Have someone drive your rig and stand at the very back, you will see exactly what I mean.
The rear track bar will tie the house portion to the frame, eliminating it's side to side motion when hit by the oncoming bow pressure wave of a passing truck or side wind.
My personal recommendation is:
1) Weigh rig
2) Inflate tires as per tire load tables
3) Do the CHF
4) Install rear track bar
5) Install new Bilstein aftermarket shocks (I am replacing mine even though they are new)
6) Install steering stabilizer
7) Thinking of Summospring Maxims (acts as sway bar, unlike the solos)
2016 Georgetown 364 TSF
2015 FunFinder 242BDS traded for above
2014 Starcraft 1221 Comet traded for above