Anyone had any experience with them going bad and causing a vibration, I have been chasing a vibration for weeks and think i have found it. My slip yoke will move up and down about a 1/16 of an inch think it might be causing a high speed vibration. What has to come apart to get the bearing out?

 

It's not a bearing, it's a bushing. Not sure what's involved in pulling the tail housing.

 

i also have been chasing a drive line vibration in my 94 rs had the trans rebuilt and that didn't cure the problem. the tail shaft had a little in mine also but just my luck that wasn't the problem. i'm still looking