11-03-2023, 08:13 PM
I will say that I've only ever used a speedi sleeve on a 1 5/16" type flywheel that doesn't have the integral ring gear i.e. 1930/31. Those that I've used have always had the same size boss and 99187 has been the one. However, the advice to measure the boss has to be the correct advice so as to be sure.
Steve
Steve