yeah,
www.rocky-road.com has a lift kit that will work just fine for a tracker.
www.calmini.com has a lift kit for the tracker as well(assuming you want to stay independent front suspension for both lifts) The calmini kit is built MUCH MUCH better than the rocky road kit. I have the rocky road kit and my friend has the calmini kit. The rocky road kit does actually flex better than the calmini kit and will allow 31" tires. The rocky road kit(while fully weighed down because they use a higher spring rate to get the lift instead of control arms like calmini)gets around 24" of articulation. The Calmini kit get a little less. The rocky road kit DOES NOT give you the lift they claim, the Calmini kit DOES give you the lift they claim. Both companies have absolute SH*T for customer service and both companies are horrible about shipping on time (you seriously might get 4 month delays with both companies) The best route is to get some coil spacers from a jeep TJ, get a dremel tool and sand the inside out enough to make them fit on the tracker and make your own body lift. DONT listen to all these fu*ktards on rockymountainextreme that you cant wheel a tracker. In my experience most of the guys on here are as*holes on the web and pretty nice in real life...so dont take/listen to the sh*t they post on here. With a Rocky Road Outfitters Old man Emu suspension or the calmini 6" suspension and with a locker front and rear you can do damn near any trail out there (my buddy sporting the calmini with limited slip front and rear has done EVERY trail in the charles wells moab book with ABSOLUTLY no difficulty) and I have done trails such as the poison spider, golden spike, goldbar loop with absolutly no problems (i'm locked in the rear only). Build it, Wheel it, have fun.