The vibration and signature "clunk" told me it was time to put a new U-joint in the rear. The Chevy dealer was the closest stop on the way home, so I stopped in to pick one up. The guy behind the desk says "that'll be $93." This Blazer is new to me, and I couldn't remember what I paid years ago, but this sure seemed High. I stopped in at the local autoparts store and picked one up for $14. I noticed the $93 Chevy version wasn't greasable, where the other was. Is there any difference in dependability??????