Do's
1) mount on and secure with rubber isloator pads.
2) mount it away from any area likely to get hit with debris
Dont's
1)securely mount directly to frame.
2)mount in between two bars that could flex and crush the radiator.
Also keep in mind to make sure your car PROPERLY grounded.....meaning if you have a poorly grounded car any stray current could travel through your radiator on its way back to the battery. Which in turn could blow little hole in your radiator. Causing a radiator failure. Heres a good link for you on mounting and installation.
http://www.rondavisradiators.com/Ins...0ver%204.2.pdf