Before reccomending the Golden Spike trail I would HIGHLY suggest taking the Gold Bar Rim trail a previous day. At the end of GBR trail you can walk (or drive if you're daring) the mile down to the "Golden Crack" and watch the vehicles(on the Golden Spike trail) go over the most known crack in Moab. The drive or walk down there will talk most of the VX's off the thought of taking the trail. Body damage is very possible over the crack. Last year we watched Bruce (great trail guide who stepped on the Gooney birds toes earlier) have to duct tape his bumper back on in his lifted Trooper. One of the trail guides on Golden Spike had to be winched over it. Awesome to watch, but taking the trail is like asking for body damage (IMHO). Yes, I know 2 VX's taking that trail, but those two are on the bit nuts side normally. They are both locked, and lifted with lots of experience. To my knowledge they are the only two to take a VX through the Rubicon trail.
Taking Gold Bar Rim trail the same day those two take the Golden Spike trail might be the thing to do so you can see how they do as far as body damage. Then decide if you want to take the trail.

Deby