There is NOWHERE legal to go wheeling in New Jersey except for the Pine Barrens. I'm a member of a Jeep club, and some of our members are working feverishly to try and change that a little, but unless it's private land that you have permission to be on, the state rangers will find you and ticket you. It's a real shame too as there are a ton of places with good wheeling potential in this state.
I urge anyone into wheeling to resist the urge to wheel illegally. Every time someone is caught doing this, it's another piece of ammo for the liberal tree-hugging granola eaters. If you gotta have a fix, head for a legal park (Such as Rausch Creek in PA, which is pretty much the only game in town right now). Our public wheeling spots are closing all over the country (The Hammers in CA, Tellico in TN, there's even rumor that some trails may close in Moab, UT, the wheeling capital of the US). If you do go to the Pines, be responsible. Okay, enough