I was missing parts needed to install the kit (hub seal, jam nuts, grease fitting) and they wouldn't send them and then once I got all my parts collected and it did this on the first drive they had no interest in helping me fix this noise, caused my their ball joints which I paid good money for. I put in a pair of NAPA Chassis Parts lowers and they are nice and smooth now with no noise. I ended up spending $100 to fix this "kit".
I'm ok with selling cheap import parts, everyone does it, but there needs to be good service to go with it. If you opt for the $18 import ball joints at any parts store they will sure as hell replace them for you if they sound like this. CPP sucks as a company. I'm embarrassed to have their parts on my '66 now.
https://www.youtube.com/watch?v=FMrm...ature=youtu.be