Because the himes and uniball use a teflon liner, we have had no issues. We had a few inner heim that the liner was creaking just a tad, but just a shot of any type of thin oil/lubricant will quiet these right up. The arms are powedercoated black and we have yet to have any issues with them. A grease fitting would only lube the inner parts of the heim/uniball and this is where the teflon needs no maintenance. We use stainless inner hiem spacers, so no rust there. The tapered adaptor is made of 4130 and we are looking at a new coating process to keep these looking great. I will take some pics of the parts individually and post them so you cna see what each part looks like.