This is a 12 degree box with 18 gears.
It came out of my Long Deck Biesemeyer Ski Race Boat #189.
Comes complete with input and out put split couplers and Tach drive.
Never had any problems with this unit and was in good working order when pulled from the boat in 2000.
I would not hesitate to run it again as is.
Lake Havasu City, AZ
928 302-4986 or send me a PM if interested
Thanks for looking,