dori2 s13coupe

http://www.zilvia.net/f/showthread.p...highlight=VLSD ..... most useful.... but still didnt answer my question... im about to purchase a z32 abs vlsd.... it comes with the output shaft and the axle which is 5 bolt pattern... so what im wondering is that will it bolt right up to my s13 coupe besides the fact the i have to switch the cover with my open diff... becuase im not sure if the axle is long or short... or do i just need a j30 5 bolt axle? thanks