pitman arm won't come off

With enough heat you can move a mountain! thats alot of iron to heat at once,so use oxy. accyleane torch no.5 tip or rosebud.Heat while applying pressure with puller.Leave a full nut on it, helps keep things together when it slides off.Did`nt want to ruin my good puller (to much heat ) Went to harbor freight boughta cheap-o.Try to keep heat evenly, & use no more then it takes. (: