I found out the hard way that there are some radiators out there that supposedly are speced for the Vehicross, but don't work very well. I bought a radiator off Amazon. It was from Performance Radiator. The thickness of the radiator was a little under 3/4 of an inch. I questioned the manufacturer, since the OEM one measures about 1 3/8" thick. They said it was fine and due to advances in design that the thickness didn't matter. Well, they basically lied! The radiator would cool fine until I hit the highway, at which point it just wouldn't keep up and the temp gauge would climb into the hot range.

After trying some other things, thinking it couldn't be my new radiator, I finally went and bought another radiator. This fixed the overheating. The second time I bought a radiator from Parts Geek. It was a Spectra Premium radiator, and while not quite the OEM thickness, it was a lot thicker (around 1 1/4" or so) and worked just fine even sitting on the trails in Moab with the AC on. Funny thing is, I spent less money with Parts Geek than I did on Amazon.

When replacing the radiator, make sure you re-use the rubber gasket that seals it to the radiator support. This rubber also cushions the radiator and keeps it from cracking.