We just pulled the trans from a 91 integra w/a b18a1. Unfortunately we do not know if it is the original trans. I know the 90-91 ys1 had a smaller input shaft but don't have another to compare it to. Does anybody happen to know what the spline count is for either a 90-91 or a 92 and up?

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tooslohatch &raquo;</TD></TR><TR><TD CLASS="quote">We just pulled the trans from a 91 integra w/a b18a1. Unfortunately we do not know if it is the original trans. I know the 90-91 ys1 had a smaller input shaft but don't have another to compare it to. Does anybody happen to know what the spline count is for either a 90-91 or a 92 and up?

Thanks</TD></TR></TABLE>

The 1990-1991 does NOT use a YS1. It uses either an S1 or A1. As for the spline count, I have never counted. But I DO know that the spline count is the same for a 1990-1991 as it is for a 1992-1993. The only difference is the shaft size. A 1992-1993 disk will fit on a 1990-1991 spline, but is just very loose - MUCH too loose to use, though.