Well I was thinking maybe so but I dont get much play in it. I just have a bad vibration at 35 and over, my driveline has some slop in the splines, my bros d-line is much worse and doesnt get that much vibrations from it, Im just try to get arid of the vibe...
That's likely your problem. Not every truck acts the same. Yours might be getting bad vibes from less slop.
After driving for a bit I noticed my vibes are still there. Shoot.