I have a 30' Jayco Jay flight. This is our first travel trailer. I recently leveled our trailer and when disconnected from my truck it rolled back about 2" and partially crushed my plastic wheel choc...
Maybe i'm doing it wrong but i level side to side, use standard wheel chocks, one behind the back wheel/back axle and one in front of the front wheel/front axle, then level front to back, extend the stabilizer jacks and then put in/tighten the x-chock