I had to remove the bolt where the shaft slips on to the steering gear box. Just loosening the bolt wasn't enough. And when putting the new one on do the same thing, slide it on with the bolt out. Other wise you'll just keep banging on it trying to force the shaft all the way on. (Ask me how I know!)
'88, 4.2L, Auto trans, Howell TBI, DUI HEI, 1 1/2" lift. Started life as a Sahara.