i believe the '90 crx had a cable actuated clutch while 92 and later civics have a hydraulic. theres a conversion kit out there but thats just too much work/money for a tranny thats 14years old, imo. just go to the
www.thepartstrader.com and look for a y8 tranny(thats where I got a "98EX tranny for $150) if you need a new one. Do you EVEN need a new one?
you can also put a free ad on that site to sell your a6 engine/tranny.