Is there a mod for drilling the rear bulkhead of an NV5600?

[Stranger]

So my NV5600 is apart. The gear stack is still together with the cases off. Putting in a new Reverse Synchro.

I think I read somewhere that there is a mod for drilling the rear bulkhead beneath the shafts to allow for better oil flow to 6th gear and the back case?

Does anybody have info on this?

Thanks.

 

[GAmes]

Contact Standard Transmission & Gear in Ft. Worth. They do that mod.