4 speed to 4 speed od clutch chatter

If the gear box was the only thing you changed the last time I think it's pretty obvious the issue has to be in the OD gearbox. If you're using the OD bell and linkage with the standard 833 with no problems that's not the issue, same for the driveshaft. The problem has to be with the OD box.

Is the shake/chatter a 1st gear only problem?