I just spent all day on one rear axle hub...I have the correct puller type. three jaws pulling on the lug studs/nuts. using an impact to get it tight then I have tried heat, smacking the puller with a hammer...and using a breaker bar to get a few more turns on the puller...all to see zero movement. Does anyone have some good advice? The jeep bible and re-builders guide say not to hit too hard. I called the guys at R&P and they said you got to hit em hard sometimes...How much heat? really really frustrated...coulda had new discs on hours ago and been on to fronts!