S20 transmission on ZC

[budget_crx]

I just picked up an OBD1 DOHC ZC at the junkyard and it had a hydraulic S20 transmission on it. It came out of a 92-95 civic coupe.
Is this the stock transmission or is it a JDM swap like the engine?
basically how can i tell if it is JDM or USDM?

[DirtyDC4]

If the trans used unequal length axles, most likely USDM. If it used a midshaft and equal length axles, JDM.

[transzex]

could be either.....