Here are a bunch of pictures:
And some more. All the same principle, just different designs. keep in mind that you do not need to mount the anti wrap/trac bar to the front(ie facing the engine or transmission) driveshaft side. You may also mount it to the back side of the differential and attach it to the bumper with the same results, sometime resulting in a lot less fab work and tubing expense, much like I did my rear. All you are essentially doing is controlling the twist /torqueing action of the differential when you apply power. The 'seat of the pants' results will impress you as it applies power to the wheels NOW.
Great Video on wrap bars
and some photos of my setup, it works pretty good!