You don't need it. Trust me, I used some materials I had stashed away in my shop to fab up stand-offs for this tub so it would clear the fender enough for access to the filler caps. I'll try and find some pics, but my bronco is not handy at the moment, stored in my daughter's garage about 10 miles away. FYI, JSmall does not frequent this site much if any anymore. He has moved on to other ventures involving jeeps from what I've heard.