AEdelheit
TDR MEMBER
I see that several people grease the hubs but no mention if a special end for the gun is needed. Is it just a direct fit on the hole and try not to let too much escape out the sides or do you need something like a needle tip to insert the grease? I've never removed the sensors so don't know what it looks like underneath them.
I Use a rubber tip grease fitting, some have use a 1/4x28 zerk with an O ring around it, there was a thread at some point with pictures of the different options.