PTO Snow Blower Angle of Attack

[PILOON]

If you pay attention you can pretty easily hear and feel extra vibration if the universal joints are getting over stressed from to much angle on them

Last year I replaced all my bearings on my blower as I had one that was very bad and did the others while I had it apart. That was quite reasonable and certainly worth buying another 8-10 years usage.

BUT after careful examination of the PTO shaft bearings I left well enough alone as I could not detect any binding nor any slop in them.
OK the shaft has zerks for greasing while the blower ones do not. (and I grease often)