On an 03, you should have the non-tapered forks...
Just finished installing my 2-up swithcblade, other than the issue with getting the spools started (frickin' bolts on the spider need to be about 1/4" longer) it was really a peice of cake..
ArGee
14 Thunderbird LT
Wasn't sure if Red or Black was faster, so I got a Red & Black one...