It is fixed now, I took it apart again, I worked the table back and forth and found binding in the last 8 inches of travel. It was not found during reassembly of the mill. That is because the gibbs were not fully seated. The final adjustments made to stop any play in the table, saddle or column had not been made yet. When they were made everything was moved with the steppers and the gibbs were adjusted to take all slop out.
Well it ended up being the gibbs I received from Grizzly. I put the new gibbs in with the steppers disconnected and slid the table end to end and after a adjustment I could only move the table half way before I could feel the binding starting and getting worse towards the end of the table. It would get so tight I would need a rubber mallet to move the table back past the half way point so it would be loose enough to move by hand.
The Y and Z gibbs are OK, but the X gibb is slightly greater in taper from thin to thick and in height.
I put the old X gibb back in and everything is fine, back to normal.
David M.
San Jose, CA