[tweety bird]

length is the factor there i belive my foreman is that way, the front dif is offset to the left so the left side should be the shorter shaft. problem is you'll probably have to take them apart to measure. they may run fine now but if their wrong when you load the shock it may damage your shafts, or one for sure. the inboard cv will adjust shaft length under shock load( as suspension loads up shaft gets shorter) so if shaft to long on wrong side = more shop time and less gas $

my 2 cents any way

i would pull them and make sure there not different, i just finished a out board cv boot replace and i know the pain in the a$$ it is, good luck.