I have noticed many posts and pictures (see this one of Coz's suspension zerks) on this subject. It looks simple enough and I was planning to install grease zerks on all my suspension parts. But now looking at the arms and the bushings I am confused.
If you install zerks through the arm where the bushing goes, all that gets lubed is the outside of the bushing, not the shaft that needs it. What's the point of that?
To get the grease to the moving shaft inside the bushing, you would either have to drill through the bushing (not recommended) or grind off some of both bushings to create a channel between the two sides of the bushing. Even if you did that, how would the grease get through to the shaft? It's a pretty tight fit.
I must be missing something. Can someone exdplain this?
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