I searched, but I could not find a definitive answer. I have a 99-00 civic si non lsd differential, final drive, and counter shaft. A friend has a OBD1 jdm lsd b16 transmission. His lsd is broken and he wants to know if my non lsd differential will fit in his lsd transmission. If it does would he need to use my final drive and countershaft too or could he just use his final drive and countershaft? Thanks for the help in advance!

 

Yes. He will have to use your final drive (countershaft and ring gear).

 

Thank you