a 05 should fit as well , you can repair the wear , had a few done before , i also fitted the kx450f caliper assembly and hose so the caliper bolt does not dig in to the swingarm when they get a bit of slop, had to file a bit wear the caliper bracket goes thats about it , if you want to loose some unsprung weight fit rear axle and nut off 15 and on kx450 f plus side its lighter and there no cotter pin as the nut self locks.If you need more info on to make these models better let me know , done a lot of developing on these bikes over the years.