the clutch didn't fit my friends b18a would it be because of his cable tranny? and will it fit my ls tranny? i've got a 2001 integra. also if the clutch flywheel has rust due to it sitting in the garage should i do anything about it?

 

Yes the clutch will fit your car if it's a 2001. All B series hydro clutches are interchangable. As for the rust, if it's just surface rust, try some WD40 and some elbow grease, and it should look brand new. Just make sure to clean it thoroughly before installation.