Well will it really work if the pucks are different sizes? That is a question that I am not sure of. But I am thinking no. When you do the BL the only thing that you take off are the bolts and the pucks fit right on top of those rubber bumper things. If the rubber bumper things on the Frontier are 1" (there are) and the pucks for the X are 3" x 2" (they are) then you need a couple of different pucks. So no, you do have to add a few. I agree though, go to Sportztrailers and to Fastenal and be set. -James