Has anyone ever seen this before? I have had a high speed vibration in my car (80 and above). I noticed some slop in the slip yoke, so I took it apart to put in a new bushing and and seal and do the pressurized bushing mod(to feed transmission pressure to the bushing), and I found this.... Not sure what would cause this. Some background on the car: It has a vortech supercharger, 355 horse power and 399 torque, stock 4r70w transmission and 3.73 gears. I drag race it in the summer time, it has run a best of 12.14 @ 115. Any idea what would cause this? Any help would be appreciated. ThanksView attachment 129661View attachment 129662View attachment 129663