I had the same issue on my gen 3, but got it to work. I removed the tail lights and you can access the back side of the hole that does not have a weld nut. I used a couple of washers as spacers, and a larger fender washer and a lock nut for the included shoulder bolt and it worked fine. Just like new. I really liked the bed extender on my Gen 1, so I was determined to get it to work properly on my Gen 3.