Does anyone know the part number for the nickel plated slip yoke for a 2010 chevy 1500 silverado crew cab 5.3 z71 4x4? I went to gmparts direct club without any luck. The service manager said that he had never heard of it. He did tell that they used to put in the super rubber ball that you get out of the gumball type machines but they had found that the grease worked better. The guy at the local powertrain shop said they did the superball solution frequently and that it did indeed work. He also said that it would not cause any damage, that it simply provided a little preload to eliminate the slamming.He was surprised that I had a 2010 model that was clunking..He thought gm had fixed it by now. Thanks in advance and yes I have tried googling it.