I just picked up a pro 5.0 shifter from vince and im having alot of trouble getting the old shifter off. I have all 4 bolts off and i cant get the old shifter off the tranny. I stood on both seats and pulled as hard as i could and the damn thing isnt going ne where. Is there a easier way to get it off? and what should i make sure i do before i put the pro5.0 on.

thanks david