here are the answers-as given to me by my guy in korea
1.yes-they have diff lockers and they are currently in production. however- they only produce for the facelifted sporty- 1999-2003. no lockers for 1994-1998 26 spline axle. rear 28 spline diff lock is 600$. front diff lock is 430$- but it requires a special fitting process (sorry guys- i dont know what that means- my mechanic, who is a kia dealer and has a garage and owns a sporty with front and rear diff lockers that he purchased from trackfinder 6 years ago says that you need to do a small gringing of the housing or it will mess with he steering, or something like that......). for 700$ they will send you a complete front axle with diff lock already fitted. prices do not include shipment, tax and what not.
2. they dont make the diff ratios. thats another company. same for extended front forks that i really really wanted.
3. as for all the guys that sent me a pm and asked for one- sorry guys, but im not in the parts selling buisness- and im not in this for the money- all the lockers were pre-promised to my friends. and btw-why buy a600$ diff lock from a guy in israel? shipment alone will be really expensive. it does not make sense. why not contact these people and try to place an order?
oh- as for replacing the diff...i tried. the only option is a re building the sporty with 2 live axles from whichever manufacturer that you might want (ah....my dream...my 11 month old daughter, and strict rules regarding modifications prevent me from doing that)- not possible. regarding the price- i didnt put the price tag on the part- i just discovered it. for you 600$ is expensive-but over here, due to high taxes my sprty is currently worth about 11000$ blue book value. (yes, life here sucks, i know, we also tend to complain a lot... <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />).