In order to install our Channel box in kit, all of the A-arms must be removed from Rhino. Then the area must be clear of old paint and any dirty surface in order to weld in our kit. You must leave enough space for the A-arms to fully droop down and not interfere with our box in kit, so try to mock up and mark where you will be welding in the plates before taking rhino apart, to get a feel for where the gussets need to be welded. If you have any questions in regards to install, feel free to call us at 310-856-7676. Further details will be posted soon!