There are a few places that sell a complete kit to adapt the Z32 tranny to the SR or the KA. One of these shops is Mazworx. The top two kits are for adapting a Z32 tranny to an S13 or S14 SR20, and the two kits right below are for adapting the Z32 tranny to an S13 or S14 KA. I don't remember reading anything about the input shaft, so I am assuming that it shouldn't be an issue.