I searched and found both answer, so being the noob, I might as well follow the trend and start a post with a generic question.

My question is, I own an 88 Crx Si (originally from canada) and I swapped in a sohc zc, I dont know what year the engine is but I was told it was a never year because my throttle body only has a hole for an IACV and not an FITV

I just wanna know if it matters or not what year tranny I buy as long as its from an 88-91 Si?

 

'88 transmissions have a different spline count vs. '89-91 transmissions. You can use the '88 tranny, however you also have to use an '88 clutch with it. '89-91 clutches will not work on an '88 trans.

 

And 88 flywheel to go withthat clutch - pretty much take them both from your old motor and put them on the new one.

 

hmmmmm ****

I dont know then. The car is an 88 Si, but I dont know what year the tranny is...

If i got some numbers off of the tranny would you guys be able to tell me anything from just the serial on the front of the block stamp on the tranny?

 

Here is the magic info everybody seeks:
Tell the year of CRX tranny the easy way.
http://norcalcrx.org/nikita/crx/tranny2.jpg