Anyone out there have a 2005 - 06 Chevy Equinox? We bought one last month, with 38,000 km on it. Very pleased with it, but there is a rattle or vibration in the steering column when going bumps at low speed. Took a look at a u-joint (?) on the upper steering colomn under the dash, seems loose. When turning the steering wheel either direction then letting it return to straight position produces a "knock" in that area. Anyone heard of this or have an idea as to what's going on? Also, are ball joints on these vehicles "lubed for life"? The boots on all of them look empty, but I'm used to the old style with the zerks. This could also be the reason for the noise I'm hearing going over bumps. How are "lubed for life" ball joints supposed to look like?