The '97 flywheel probably won't work. The 1999 has part numbers 3085615 for the flywheel, and 3085877 for the stator. The '99 stator is found on 1999 XLT's and the 2000 Triumph. The '99 flywheel is found on 1998-1999 XLT's and the 2000 Triumph. I can't tell you what exactly the difference is between your 1997 parts and the 1999 parts, all I can say is they are different part numbers, so they are different parts.
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