AA-Racks Model X39 Full-size Truck Ladder Rack Side Bar with Long Cab Ext.-Matte Black Our unique design of Bracket Bar are built to strengthen the existing basic truck rack style. Each two of the Bracket Bar are jointed with 6 / 4 Grade 8 Carriage Bolts; adding a total of TEN Carriage Bolts built on each upright poles. The package also comes with Two of the One-Piece Handrail, which provides the Grab and Hop convenience of getting on the truck bed. It features the extendable top cross-bar which can be adjusted for different sizes bed width. The adjustable range covers inner bed width from Min. 51'' Max.71''. The height is 30.5'' to the clearance and 28'' to the cross bar.Fits 5.0'~8.0' bed Both the Over-cab Extension Bar & Side Bars are Adjustable in length; offering a wide range of fitment (Width & Length) for different Trucks Models.Side Bar Extension Length Adjustable:53.5''~90'';Over Cab. Extension Width Adjustable: 45''~56.3'';Over-Cab Extension Length: 55 inch This unit is Powder-coated with weather resistant paint. Color Options of Matte Black & Matte White are also available for choices.