I couldn't buy a pass. side hub today it wasn't in stock anywhere so I had to order it. I rotated my tires instead I still had the vibration from 66-76 but my blender noise was far less on my first test drive. I was pulling into my driveway and noticed my clunk noise again when turning at low speed. So I decided to pull the intermediate shaft again, it turns out that most of my white lithium grease was gone. Im not sure if the engine heat zapped it or it just broke down and leaked out. I did noticed the boot at the rack was covered in grease. I went to auto**** and picked up some crc full synthetic brake grease. That stuff worked great it seemed thicker and has way better heat resistance. I drove it again and my clunk and highway vibration is gone. I will let everyone know how it goes later on.