I have the Entegra Vision 31V, same coach as the Allante 31V. First the Sumo springs will help with body roll, much like the sway bar does now. The tracbar will prevent the axle from moving side to side from the wind and passing trucks.
I would opt for the tracbar and do the CFH both front and rear to stiffen up the body roll.
Here's what I did in order. Not saying this is the best order, but this is what I did. Really you could do everything I did except the alignment and steering stabilizer for the same cost. I do think the steering stabilizer is worth the money, but maybe you can do that at a later date.
- Weigh the coach and adjust the tire pressure. The goodyear tire chart minimum pressure (80psi) is plenty enough to handle the weight of my front axle, however its not enough to keep the wandering down. I currently run 90 as i'm still testing different pressures.
- Cheap Handling Fix front and rear. Made a HUGE difference, but still allowed for quite a bit of "push" from passing semis and wind.
- Reload the coach to move as much weight to the front as possible.
$$$ - All of these were done simultaneously by a truck shop
- Trac-Bar: The track bar works so well, I can feel the coach lean away from the passing trucks vs the rear end move to the right. Highly recommend one of these.
- Safe-T-Plus Steering Stabilizer: The steering stabilizer helps bring the steering wheel back to center and seems to help with the wandering some.
- Alignment: Oddly enough the alignment was actually very good. I recommend having the toe set to 1/16" in on each side for a total toe of 1/8" in. Set as much positive caster as possible and still be in spec with Ford recommendations. Mine were already right at or very close to the upper limit.
At this point, i'm still playing with tire pressures to find my sweet spot, but right now the coach drives like a dream compared to what it did beforehand.
Michael & Angela Foret
North Central Florida
2019 Entegra Vision 31V