Not sure if this will help you or not but I have an SSO bumper that they told me was for the stock skid but what I got from them was a bumper for the TRD pro skid. To make up the difference between the bumper and the RCI front skid, I used the RCI filler plate and it worked great. I had to use a couple spacers on the bumper side to get the angles right but other than that it was pretty simple bolt on deal.