Welcome! Need to know what brand leveling system you have currently. A picture of the control panel would be a good start if you don't know the manufacturer. Also, do the jacks have external springs?
2006 Damon Daybreak 3276 35'with 5 Star Tuner. 3 200 Amp Lithium batteries and 2000 watt PSW inverter/charger. 2013 Elantra on a Master Tow dolly.