seems bet 2003-2004 there were some changes, minor or otherwise, but the books i have were printed before that so dont have the info-most of the cores i have all seem to be 2004, dont know why i ended up with that year, but i did-i have some parts laying around, like a new pump, etc, but not sure if they would work on a 2004 unit-i know in the Sonnax book, they list diff stuff for 2004 up, even the tail housing bushing
is there any lit. out there that is up to date on the changes, and what will fit
sure would be easier to have like a 2000-2003 unit, lol