It's a Dexter Torflex suspension, but that's about all I can tell you. Some of them can be lifted, others can't, it depends on how the axle attaches to the frame.
Someone should come along who can answer that.
2013 Starcraft Travel Star 229TB
2011 Jayco X17Z(traded in)
2010 Jayco Jay Series 1207(traded for the 17Z)
2011 Chevrolet Silverado 2500HD Z71 CC 6.0L/3.73
Reese "Pro Series" 800lb Trunnion WDH w/sway control