Two available one is a randolph the other is a johnson. Both Spin freely as they should. I have the top cover not shown in the pictures for the johnson.
The johnson is a 1 to 1 ratio for counterclockwise setup only, for a stand alone diesel engine not tractor pto.
The randolph spins counterclockwise and clockwise and is a 3 to 3 gear reduction setup
Would make a nice backup gearbox. Comes with the engine coupler pictured. 2 available $1800 each
Also have 2 electric motors for irrigation water pump well. $2500 each