Does a 450r swingarm fit 400ex?

[dang400ex]

One of my buddies told me that he has a 450r stock swingarm on his 400ex...he says it is longer than a stock 400ex swingarm...but I dont know if I should believe that it fits or not...does anyone know???

thanks,
Adam

[my88r]

http://www.exriders.com/vbb/showthread.php?s=&threadid=321802&highlight=450r+swingarm

do a search theres many others.:D