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I assume the nut is off? Of course it is.
I have pulled many that way but the stubborn ones required the use of a bearing splitter behind the yoke. Too much pulling force in your configuration will actually cause the yoke to close in on itself and the pinion shaft. And don't forget to smack the puller bolt head smartly when it's under tension (stand clear). Has this ever been off before?
I don`t know any thing about it has been OFF before
What du you mean about, use of a bearing splitter behind the yoke ?
Putting a bearing splitter close in next to the seal allows the pulling force to be applied as close as possible to the splines and away from the yoke preventing deformation.
That pinion flange has a big locking nut on it that is torqued to about 115 lbs. It should have given you fits to get it off. Best thing is fab up a flange nut remover and bolt it up to the flange to combat the torque wrench. Then when the nut is off tap the puller with a brass hammer and that flange should come right off.
With that impact in the picture that nut would not have a problem.
Add some type of spacer between the puller and the pinion shaft, you are about out of puller threads, apply pressure and hit the end of the puller as Bob said.
Might be hard to do from the top with the cross member in the way but you need to smack that hex bolt that you tightened while you have the tension on the puller. An eight lb sledge will work with less than full force. The shock will cause the yoke to pop loose. I think a couple folks have mentioned this above, the way these pullers work.
Yes the nut is removed, i must try another puller and more heat, if get luck whit pulling it of how hard du i have to teiten the nut when i built it up agine.
I used a steering wheel puller on mine and it worked well. I used 1/4 bolts, nuts and washers to bolt the steering wheel puller to the pinion flange diagonally.
About the torque spec. It depends on the axle you have. I cant quite tell from your pictures. If it a Dana it could be around 240 ft/lbs. If its a an axle using a crush sleeve and no reference marks were made on the pinion nut to pinion flange before it was loosened, then there is more to it than just tightening it back up unfortunately . Someone else could be a better source of knowledge on that proceedure.
sounds crazy but i have never had a yoke that need a puller to come off big trucks 'semi ' or trucks and cars ...but i can say for you having that kind of trouble i would say the splines are twisted a little . yes this from us hot rod ing from time to time ..you may have to heat the pinion thread area to pull off if you do you will new a new set of gears ..and a new yoke .hope this helps . be careful . good luck
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