If traction is your goal then go with an more agressive tire and a front locker, AUSSIE locker or Lockrite are both great choices and can be installed with out any special tools. I have installed both and they are very similer. Also they are fairly inexpensive. you can pick one up for around $250.00 here is a great write up on the install.
94 YJ,, Warn Rock Sliders,GPS, Flowmaster Exhaust,Cd Player,Hi Lift,7500lb winch,full width Dana 44 front, 9inch Rear,soa,Teraflex supershort sye, 38X12.50-15 swampers, 5.38 gears,Detroit Lockers, Cobra CB, Handthrottle. Built By Me