I bought my '91 EF HB with what I was told was a '91 JDM SiR B16 & trans. The intermediate shaft has female splines and I think it's the JDM shaft, but I'm not positive. My question is, as long as you have CV-shafts and trans seals that match the intermediate shaft will any of the three B16 intermediate shafts bolt up to any B16 block and trans? Or are they specific to the transmission? I haven't been able to verify what my transmission is because I can't find the tag or stamp. I thought they were supposed to be marked on the bellhousing on the front right about where it bolts to the engine. The engine is stamped B16A right across from there but there's nothing on the trans there or anywhere that I can find.