I installed mine this weekend. Two of the grease holes in two shackles weren't drilled. I went to pre-grease all of the bolt and nothing came out of two. I had to drill them through (from the side.) That worries me a bit (quality) but I am glad I checked all of them. They would have never gotten grease.
When you grease after installation you should see grease come out between the bushing and bolt. If you don't, you might need to check for an undrilled hole.
The wheel spacing increased a little too which is nice so I can now use my better wheel locks.
