<VV> looking for info on adding grease zerks to LM rear wheel bearings

[Kinzelman, Andy]

Guys,
I am using an 'ultra' rear hub assembly on my car; and considering adding a grease zerk.  I am not convinced it is either prudent or helpful; I have seen many of the discussions about it.
However, ignoring my reticence - if you have done; or were planning  to do this - where would you put the zerk?
Thanks,
Andy K.
Wisconsin