Sumo springs
I have an 2012 Allegro on a 24k f53 chassis. As many gas burners know this is basically a camper mounted on a truck chassis. I don't have issues with stability, but the ride is rough to say the leas...
Forum Discussion
Sumo or Timbren springs replace the bump stops, or snubers, that are on F53 chassis. These bump stops are what cause the rough, jarring ride, as there is very little room between them and the springs when loaded. They will help smooth the ride, but as mentioned before, will not make it ride like an air suspension rig. You can try to lower tire pressure to improve ride, but I found the increasing the front to 100 psi and the rear to 90 psi has improved the ride and handling.
