I use a curt rack system because it works and its inexpensive and can mount all my recovery system, camping and hunting gear even on their short system. It mounts to the stock rack rails and as long as I don't over load it when offroading.
Amazon has the cheap too...
Amazon.com: CURT 18115 Universal 42 x 37-Inch Black Steel Roof Rack Rooftop Cargo Carrier: Automotive