Hi all, I had at a toren cv boot inside rear replaced both, I can not get the shaft to stay in the rear end, I have beat the s--- out of it with a 3lbs. Hammer and 2x4. I have also replaced the clip (ring) on the inside end of the shaft,I am at the end of my rope ,3wkends. And counting. It falls out after I have put it all back together.I am hopping not to have to go to a dealer.Does anyone have an ideas on what I may bee doing wrong?