Hey Jessica, the Thule Hullavator part # TH898 requires a set of aftermarket crossbars that extend past the feet of the rack a few inches and also ideally have a channel on top of them to make attaching easier as well. For that it's basically impossible to beat the Malone rack part # MPG216 as you get just that at a fraction of the price as similar roof racks. view full answer...
Thanks for the photo, Jeff!
It looks like your 2006 Jeep Liberty is equipped with an older Roadmaster base plate kit so to replace the parts that attach to a tow bar you need the Roadmaster Replacement Arms for Base Plate Kits # RM-ARMS. This is a form you'll fill out and sent to Roadmaster so they can remanufacture the parts you're needing. view full answer...