Not sure if there is a difference or not. But will tell you that the 2000 transmissions also had the potential for failing. the 01 transmission was an improvement with the exception of a soft third gear resulting in the cush drive. The 02 and up transmissions is when Victory got it right. When the upgrade kits came out I know the case needed a spot ground into them clearance issues. I know I didn't answer your question but this is what I know about the early victorys.