Go Rhino RB30 Slim Line Running Boards with Brackets Kit Model 69643973STGo Rhino RB30 Slim Line Running Boards with Brackets Kit Model 69643973ST Meet the third edition of the legendary Go Rhino RB Series of running boards: the RB30 Slim Line Running Boards. The RB30 is the next generation of Raptor inspired design that will make your truck, Jeep, Bronco or SUV stand out from the crowd. With its aggressive, stylish appearance, this cab length, bolt on side step provides maximum traction and features an open flow through