If all else fails, cut with an angle grinder into the pitman arm where it's around the steering shaft, parallel with the shaft. Make a cut very close to the steering shaft, then you can pop the arm off by placing a chisel in the cut and hitting it.
jps4jeep said:Slowly use the pitman arm puller to pull on the arm, as you are doing this, use a 5lb dead blow hammer (BFH can also work) and hit the arm in it. the steering box has a slight taper on it, and it is speced out to be held on there with 160 ft-lbs, so that son of a "B" is on there! this should pop it off! If not, you can use heat, but do not get too crazy with it!
the wifey p'd me off one good hit with a bfh and all i heard was... PING! and wow that works lol