Hi Ron,
I have one installed, it simply wraps around underside of your normal bumper in two places & is bolted to the chassis with two large through bolts at each point. Terry is right, if you hit something sharp & the plastic is torn, water will eventually work its way underneath & start eating away from the inside out.
After saying that, mine is 14 years old, hasn't had a easy life & still looks great!
I will try & snap a photo of the mounting points.....
Good luck, Andy
