Just went out and tested a theory i had recently, the throttle body off of the mid 90's altimas with the KA24DE FWD will work on the RWD CA18DET intake manifold. some modification is needed. you will have to cut off one of the coolant ports bc it hits the intake, therefore needing to bypass the TB coolant lines. also the throttle wheel will need to be filed out as the butterfly shaft is larger on the altima. I used the same springs from the CA TB and added an extra one as well. The reason i changed TBs is bc i had a broken off idle stop screw and was having consistency issues with my idle. The gasket for this is also the same PN as the S13 KA24DE TB. hopefully this is relevant to someone. figured i would share.

Thanks for the info!

Do you have picture

i can take one it doesnt look too different...