Need some help. I know old post but I hope someone can give me some insight. I had the misfortune of my car sliding off the jack and the car landing on the flex coupling and differential yoke. It tore the brand new yoke to shreds. Nothing else seemed damaged so I bought a new one and reassembled.

Well, when I went to dive the car while giving it gas (not when coasting) at speeds over 60mph a horrible vibration that was not there before this incident. I checked everything and one of the ears on differential flange was apparently bent by about 1-2mm (I measured with mm calipers). I suspect that is the source of my vibrations. So I have decided to try and replace the flange. I removed the 12 pt nut but now I cant get the flange off. I broke 2 pullers. Is there a secret or what am I doing wrong. Also am I going to be able to get the new one back on since I did not take into account the original torque that the factory nut had (stupid). Any info much appreciated.