Ok so I got the off a guy that did the conversion from the h22a4. Not trusting what he did at all. Finally got it running. Just wondering if it needs different axle shafts now? It is the vin 5 car so that is supposed to make it an SH but its just fwd and front steer. I pulled the numbers off the transmission and the honda dealer said it a base model transmission. The number on the trans did not match the car. I do not see the ATTS unit. The driveshaft should not have changed right? Sorry to sound stupid but I thought I read somewhere that you had to change the axles to make it work but I can not find that article again. Just trying to get some feed back from what others had to do. Thank you in advance.

 

With the exception of the ATTS equipped cars, all other cars will use the same axle with the only difference usually being AT(long axle on the left side) or MT(uses jack shaft and shorter axle combo).
ATTS cars have unique left side axles.
Just use axle for a base 5th gen Prelude and you should be fine with the H23/AT.

 

I was told the car was supposed to have ATTS. Have a light on the dash for it. The guy that had the car before me said he removed it. I do not see it anywhere. My car is a MT. It has the half shaft on the driver's side but it just goes from trans to axle.

 

I swapped my SH to a h23a and euro r trans (atts delete) I still used my sh axles for a while before I got racing axles. The difference in length with base and sh axles is negligible.