yes, Alinement first.
So many diff mods.
I installed a HD sway bar up front and a track bar in the rear. This elimiated most of the semi truck push and pull and makes it a joy to drive on curvey roads.
I also install the Saftey Plus steering stabilizer. I love it. Make it easy to track straight - esp on windy days. Less steering wheel corrections needed.
Lots of write up on all of these mods. IMO they are well with the money if you like a good handling (and safe) RV.
Other have installed the Sumos (Little cheaper and easier to install compared to Sway bars). Some have installed everything.
Do some searching on this forum (and others) and let us know if you have any specific quieston.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor