Help with removing stuck pinion yoke

Ds70, this carrier is not on the car we are getting it ready to replace the open diff currently in the Duster , put I will try again with puller and air hammer one more time before press, thanks
Yeah I am wondering why that impact wont work. heat may be an option but I don't like going there right away definitely don't get it red hot. if you do. i am thinking you need to reuse the yoke correct? so you dont want to mess that up.