Brackets are installed and secured using the existing factory holes in the roll cage. No new drilling into the roll cage required. No weight or stress is placed on the roof as this mounting system bypasses the roof. This mounting system utilizes the strength of the factory roll cage to support the load of the roof rack and contents. Used together with Jeep Wrangler JL (2018-Current) Front Bar Roof Rack Mount - by Front Runner to secure Jeep Wrangler JL (2018-Current) Foot Rails - by Front Runner and Roof Rack. The mounting system can be used with or without the hard top. Supplied with all installation hardware. NOTE: These brackets cannot be used together with the soft top roof or Sky One-Touch Power top.