Hey dude

You have got a JDm or early 90's tranny. I changed one of that too . after 90 the trannies became with a 23 spline transfercase shaft

The transfer cases are different in structure too. 23 is much heavier as I have heard.

I have a 22 spline TCase that came with the "new" tranny which I would sell if you like

BUT WATCH THIS one:
your gear ratio could be different. When buying a tranny for AWD car you have to make sure many things match if you front and rear diffrential gearratio don't match you are screwed.
But if that is alright just drop in a 22 spline trany case and live happy. I am not sure if the driveshaft splines are the same

AMin