Brute Crossover Tool Box Low Profile Single Lid Textured Black Full Size Model RB121LP-BT 54-3/8" L and this particular connector can

and this particular connector can be easily interchanges with other 7-way RV connectors

0 2003 GMC Sierra 3500 96

5x15x49/37 Inch Diamond Tread Aluminum Trailer Tongue Truck Box 1701385

The 2" ball can handle up to 7

GMC Model 35-4002

Brute Crossover Tool Box Low Profile Single Lid Textured Black Full Size Model RB121LP-BT 54-3/8" L and this particular connector canUnique Truck Accessories Brute Crossover Tool Box Low Profile Single Lid Textured Black Full Size Model RB121LP BT Available for Full Size Trucks Only; Low Profile above Bed Rail; Full Rubber Weather Seal; Diamond Tread Back; Sturdy Hinge Point; Strong Prop Mounting Points Lid & Body; Full Metal Shield for Props; Strut Reinforced Lid; Push Button Rotary Latch; Reinforced Floor; HD Aluminum Adjustable Tray; Integrated Tool Holders; Black Texture Coated