Thanks for the info. Once I got the roll pin out, I used a pickle fork with a four foot cheater bar and got the coupler to move about 3/8 of an inch. Now it won't move, and the pickle fork is beginning to flatten the splines on the shaft. I guess I'll just keep soaking it and beating on it, it has to give up sooner or later. I just hope I'm not killing my steering box in the process.