TMS Low Profile Universal Aluminum Utility Truck Rack Pick Up Rack Truck Bed Cross Bar 2 Bar Set Rooftop Tent Camper Bike Rack. The crossbars are designed as the installation platform of accessories such as Bike Kayaks Rack and Rooftop Tent. Adjustable design. The size of the track can be adjusted according to the truck bed width. You can also adjust the height. Made of high-quality aluminum. Lightweight and durable. Universal fit: Compatible with different model of truck bed. Load capacity 800Lb. What’s In the Box: 2x Crossbars 4x Mounting Brackets.

The truck rack is designed as the installation platform of accessories such as Bike Rack or Rooftop Tent. Adjustable design. The size of the track can be adjusted according to the truck bed width. The height can be adjusted from 8'' to 9 1/2''. Made of high-quality aluminum. Lightweight and durable. Universal fit: Compatible with different model of truck bed. Drilling required. Load capacity 800Lb. Compatible with truck bed Tonneau covers or truck caps/camper shells and vehicles with racks. A great option for Truck Bed Caps and RVs.

Can this be mounted on a tonneau with t-slot rail like retrax one? Yes. Hardware included.

Does it fit a 2021 Tacoma? It will fit most standard bed trucks (short or long bed).

What are the dimensions of the base that mounts on the truck side rails? 2 1/2 x 7.

Have a step side Chevy with is 49-inch wide will it fit? Yes, measurements in the description.