Sold individually. On certain GX550 premium or luxury trims, the rock sliders need to be installed with 1/4-inch BoxBolts®. BoxBolt® Blind Bolts for HSS Connections: No Welding or Drilling. BoxBolt® is the fastest, most secure way to connect to hollow structural sections (HSS), no welding, drilling, or through-bolting required. Designed for use where rear access is restricted, BoxBolt creates clean, safe connections from one side only. ICC-compliant and code-approved, BoxBolt installs in seconds with the BoxSok™ tool, saving labor on-site while ensuring reliable steel-to-steel performance. These blind bolts have been tested to withstand full weight capacity of our NYTOP Rock Sliders on certain make and models that don't come with threaded nuts built into the frame of the vehicle.
