Running Boards
I am out of town right now, and do not have a picture, but I just purchased an '04 3500 Quad Cab Dually 4x4. I purchased the J&J Stainless Steel running boards. I love them. There are two diameter tubes you can get on the J&J running board. The black 3500 4x2 dually shown in one of the pictures has the small diameter tube along the edge of the running board. This tube looks best for the 4x2. There is a larger diameter tube that looks great on the 4x4. I would recommend these to anyone. The only down side is the cost, which I paid $1100 for. But, I don't have to worry about my children's feet slipping off the nerf bars, nor do I have to worry about the running board rusting. The construction is very good and the board are very solid.
I don't think you would regreat the investment.
Ronnie