I tried searching the forum to see if there was any differences between the y1 and the stock transmission in my 91 integra gs and the search would not let me use y1. I know that the gearing is different, but are the spines on the cv axles, or the length needed for the cv axles different? Also does the cable and the plugs match up to the y1. I am planning on putting a small turbo on my car and I thought that the y1 was a bit stronger. Thank you for all of your help.