Main Caps for 3rd member

I'm just gonna come out and say that................housing is junk.

That is, unless you have some method of obtaining blank caps, chucking it into a fair sized lathe, and threading the new caps.

Agreed. I have measured the cap depths from a few different chunks and have yet to ever find any of the same dimension. Some I have measured vary a whole bunch from one side to the other so if you swapped them around they wouldn't work