Hey all wanted all input i could get. i have a 1994 honda del sol si w/d16z6 engine. the tranny had a grinding noise for a while that i thought was the input shaft bearing. it didnt really affect shifting as it was shifting smoothly and quietly but today the tranny was running quiet as if nothing was wrong. shifting was still smooth and quiet. any opinions on this? Should i still replace the isb? Should i leave it alone? Thanks in advance.