Macanum Drive Train Problem

[Thorn]

My team purchased the upgrade kit from AndyMark.

The motors are not all turning at the same speed. There is no driving the robot straight without a programming hack because maximum power on the wheels results in different RPMs for different wheels.

There was a long wait on back-order, and now as we enter the final week it is very stressful to not have a working drive train.

I think the problem is the connection to the gear boxes, but it's difficult to see exactly what is wrong and how to fix it. Has anyone seen this issue before? How can we resolve this?