B7100 transmission help

[USMC8999]

I am looking to replace this this missing cover on my B7100D. I can't seem to find it on any diagram. Any assistance with locatcating one would be greatly appreciated.

 

[USMC8999]

I am looking to replace this this missing cover on my B7100D. I can't seem to find it on any diagram. Any assistance with locatcating one would be greatly appreciated.

This is looking up in the transmission from below.