[Jon Stratis]

Originally Posted by c557paul

I initially thought that we may have improperly mounted the drive assemblies, but the next 2 were checked and they broke probably from stress.

What kind of stress? How was the stress applied? What part of the housing cracked? Do you have available pictures of the broken pieces and your setup?

There are many, many ways to set them up improperly, causing increased stress on the components. It may be that we can identify the root cause of the issue and suggest other recommendations for resolving it without needing to replace the gearbox housings with a different design.