best money I spent fully automatic.QUADRA BIG FOOT Each jack has a 17,000 lbs lift and with the 14 inch pads on each corner . WOW with 21 inch long legs , when ever i pull up to the camp site people come over just to hear the hydralics do its job. Very sweet sound. both going down and also when it is time to leave going back up. No lousy springs or ever had any problems with them . very pleased.
And my 2006 THOR motorhome only weights 15,700 complete.. i can completly lift up the entire coach off the ground and have major clearance under all the Tires.