Shellology,
Your half done! When you trial fit the pin on the stubborn side, are you doing it ONLY through the spindle bushings...like on the bench! If this is true, then the misalignment is ONLY in the spindle bushings and the axle eye has no bearing on the problem.
During the beastly press job, could one of the spindle 'ears' have been deformed, as this is what probably supported the entire setup. This would be my guess.
With the new bushings installed, you should be able to gently push the pin through either one, and watch as it starts to enter the other bushing. You will probably see it isn't centered 100%, which it needs to be.
If all this is true, I think new 'press in' bushings (undersize) will have to be installed in that side, and then line bored (honed) with some type of Sunnen hone to achieve the 100% 'perpendicularity' and the proper ID.
Stuart
