The fronts are the same, but the rear of a 4Runner has to drop further than the pickup. Also the pickup usually mounts on the outside of the frame while 4Runner is on the inside. I have used a pickup bumper on my 4Runner but the 4Runner had a 2 inch bodylift and the mounts were setup to be able to change the mount location since they were setup with bolts instead of being welded to the bumper.
