One of my previous fivers was the hardest riding trailer I ever pulled. It launched a gallon jug of water out of the sink, and it wasn’t even a rear kitchen. It had 2600 pound springs and 5200 pound axles and the springs only had 2 inches of travel Before the axles hit the frame. Dexter told me to go to 3000 pound springs but the 3000 pound springs were longer so I had to move the hangers out but they also had 3 inches of travel. That made a huge improvement in the ride and then I added ez flex and that trailer went to the best riding trailer I ever had.
Do you have springs and rockers only? Ez flex replaces dexter rockers and equal flex replaces lippert rockers. That’s an easy upgrade, if you don’t already have some thing like that.
My current fiver has morride LRE, which replaces the rocker with a box that has rubber sheer springs, and it’s a nice improvement over just springs and rockers. It’s even a rear kitchen and things stay put on the counters.
I’ve also added shocks to my trailers that didn’t have them. Craig