like the title says need to know how to mount stock crx mounts to a hydro jdm d15b trany

 

Unless i'm missing something here, sounds like you need the conversion peices. I have them on my hydro swap. uses the stock mounts, but gives you a billet adapter for the side and a steel rear mount adapter. Think hasport makes em.

 

http://hasport.com/store/index.php/efdhc.html