Ok... I did a days worth of searching and haven't found a for sure answer... I have a 99 wr400 with no title... Already been down the road of trying to get it... No luck... Found a 01 wr426 frame and title somewhat local (100 miles away). Did some research... Here are some part numbers... 98 frame... 5BF-21101-00-P0 99 frame... 5GS-21101-00-P0 01 frame... 5NG-21101-00-P0 02 frame... 5NG-21101-50-P0 On ronayers site it recognizes the 21101-00 as the part number (or at least that's what comes up highlighted). What do the first 3 mean? I've read I'm good up to 2002 when they made some bigger changes... So... Anyone done this swap? What should I expect? I'm planning to put everything from my 99 on the 01 frame... Any problem areas I should know about?