This adapter is used where you use the late model or Kohler gears in the rear to slow the Tractor down to normal speeds .
You Need to use the Kohler 8 Hp adapter also in order to stop the oil from leaking out.
Can use a 13 Hp Honda, Robin, or Diesel, and the clones that have a 1.00 dia crank shaft
Use Gravely Part # 46410 new part # 08564700 Gear $134.05
Gravely Part # 46411 new part # 08564800 pilot bushing $27.05
Gravely gear set ??? E-bay
GR 002 shaft spacer,and GR 019 model L adapter $150.00
this gives a high lite of the cost of the project
NOT FOR THE REG GEAR SET WITH THE SMALL GEAR
Thanks I hope this helps
Bruce g