Got in touch with Jeff at RPG and this was his reply:
Remove front skid completly and for the transfer skid loosen it/ remove for the install so that everything clears , it can be run with the pre runner bumper.
-Jeff
Anyway, installing this bumper requires removing the 2 steering rack bolts and those bolts are massive. Jeff told me it was a 1-1/16 but this was too big. I prob could have remove it with the 1-1/16 but I know it would have rounded the bolt. I have a 24mm socket and that was too small. I hate not having the right tools to do the job so I am ordering a metric big socket set. This bumper will have to wait.