409 gears torsen vibration help

2018 GT 10r80 E-85 Have had an aluminum driveshaft for about a year when removed got slight vibes had it clocked 180 degrees and went away perfectly. Recent install brand new Ford performance torsen and 4:09 gears also Ford performance...since the gear and torsen install have a vibration 60+ mph...

Have had an aluminum driveshaft for about a year when removed got slight vibes had it clocked 180 degrees and went away perfectly. Recent install brand new Ford performance torsen and 4:09 gears also Ford performance...since the gear and torsen install have a vibration 60+ mph I've went as high...