The crossbar style baseplate accommodates Roadmaster tow bars and accessories by utilizing the crossbar and/or quick-disconnect system as a mounting platform. If you are using a car-mounted tow bar, you need this style of baseplate. Fits 2010-2017 Jeep Wrangler JK models. Willy OK. No aftermarket bumpers, winches, guards, Call of Duty, BackCountry, Winter Edition, Recon, 10th and 75th Anniversary models. Will work with plastic skidplates.