I'm not sure if they would fit but why would you want auto locking ones anyway? In my experience the auto ones arent great because they seize up unless you take real good care of them. And its a real pain if you get stuck andthe 4wd wont engage! If i was you i would look for manual locking hubs off an older fourtrak. But sadly i cant tell you for definite if they would fit your sporty.
Sorry i couldnt be more help
ATB Sam
cheers any mate