I had a used one 20 years ago on a 92CTD Dodge.Well built but smelled like hydraulic fluid.
would get a new one if I had 30k to spend on a pop up
OLD 2006 F150 4wd 7200gvw,Lt275-65-18,Scan Guage,Garmin,flowmaster,load levelers,Firestone work rites Bronco 800
NEW 2015 F250 Scab 4wd 10000 gvw, 6.2 Scan guage,Garmin,work rites,3200 lb load,1800lb Palomino Backpack SS1200