Dude. You got hammered on the parts. H-A-M-M-E-R-E-D. Shouldn't have got them at Deere. They are just a shaft bearing with a lock collar. You can get them anywhere. You put way, way, way too much grease in the box. I don't know what "manual" you are reading, but the gear box is what you fill with that grease, not the chain case. If you have an IH manual that says to "fill with grease" I want to see it. That thing is going to make a mess when you run it. Dude, I can't believe you paid that much money for the parts. WOW!
The bearings have a lock collar. They don't need anything to "center the shaft". The lock collar holds them in place.
I would have torched all the bearings off and been done in 10 min.
