how can i tell what transmission i have??? is there like a serial number that says what transmission you have or what ?

 

There are usually markings, either on a bar code tag or printed on the tranny itself, that will tell you what family the tranny belongs to. Other than that, to determine what specific tranny and the actual gearing, you'd need to measure the gear ratios. There's a nice FAQ on how to do so here:

https://honda-tech.com/zerothread/1967953

 

if it has a VIN just decode it. if it does not, and the tranny is on the car and operating, there is an easier way.

refer my posts here

https://honda-tech.com/zerothread?id=2251175