Did You Know That the top four 4X4 trails in Moab are:

Fins and Things, Hell’s Revenge, Poison Spider Mesa, Steel Bender

Fins and Things is the Easiest of these four trails and can be done in a stock Jeep. Having said that, there are some steep ascents so it’s not for beginners, but it just involves common-sense driving.
Hell’s Revenge is a serious step up from Fins and Things if you dare to try Hell’s Gate, Mickey’s Hot Tub or Escalator. If you try any of these you will need a more serious 4X4 that is equipped with front and rear lockers and a VERY experienced driver. Any of these side challenges can be easily by passed.
Poison Spider Mesa involves more technical driving. Parts of the trail are off camber which can test your nerves. If you have all day, you can access : Golden Spike and then the Gold Bar Rim trails.
Steel Bender is not for the faint of heart. It is the most challenging of the four trails mentioned, however some of the most challenging parts of the trail can be easily bypassed or avoided. For the other parts that can be quite challenging, you not only need a seriously equipped 4X4, but you will also need good driving sense and experience.
Moab Offroad Trails | Utah.com