Yeah... that's what I'm worried about. But, it's not crazy high, there must be other people out there with similar lift and dual cases.
I just checked and the angle the shaft is running at is 16 degrees relative to the output flange of the tcase. Anyone know if that's too steep to run smooth? And would an issue like that smooth out after a certain speed, or just get worse and worse?
Are there CV shafts out there that can run smooth at higher angles? I know there are high angle shafts but it seems to me that is just for preventing binding in super flexy rigs.
This vibe feels/sounds a lot like a loose pinion flange I had back in the day, although that would only happen while floating the throttle. Flanges on this rig are tight so that isn't the issue. The last bad ujoint I had made a chatter/rattle sound, less deep than this.