As an authorized AMP Research dealer, G & J Diesel located in, Billings, MT is committed to helping you choose the right AMP Research product for your vehicle. With four PowerStep lines, BedSteps, Bed Xtenders and accessoriesG & J Diesel will help you select all the options you need for your lifestyle. G & J Diesel has a wealth of experience when it comes to power running boards, bed steps and bed extender products.G & J Diesel offers the best choice of PowerSteps, BedSteps, BedXtenders and accessories. They also sell and install other truck, Jeep & SUV accessories. If you want the best deal on a brand new AMP Research product and want it done right and quickly then head over to G & J Diesel in Billings, MT your local preferred AMP Research dealer.