Hmmm... I gonna go against the grain here and say if you're a good driver, you could do Constrictor if you have a winch to get up the waterfall. I have 33's and lockers and I had very little problem doing the Con. Maybe I've wheeled with lockers so long that I've forgotten just how much they help.... A good way to find out how you'll do is try the first obstacle of the trail. If you can't make it up the end of the little chute/canyon/thinger, turn around. That's probably the hardest part of the trail, IMO. But if you end up stacking tons of rocks or needing a strap after trying for a bit, the rest of the trail is going to give you a headache too.