I have come across what I am told is a Doug Nash over/underdrive unit It has DNE2 cast in the side and R1A1 by the serial plate 001464 casting no. 71-8003 in the case and 72-80114 in the adaptor its for a c-6 I called US gear but they weren't much help Any help out there? Thanks

 

Google "doug nash overdrive" and find:

Doug Nash Overdrive Problem Page

And a host of others. Some issues with these with respect to a thrust washer vs. bearing. US Gear redesigned, and from what little I read, does not support the DNE units.

Might be fixable, take your time and research and good luck.