I'm replacing the passenger cvjoint and intermediate shaft. I noticed the oem one had a thin oring that I assume helped to keep water out of the splines. My new parts arrived without this oring. Is it something that was omitted or should I try to source one? The new intermediate shaft was a dana replacement from Rock Auto and doesn't appear to have a large enough groove to fit an oring regardless. I'm guessing the answer will be to pack the splines with grease and send it but figured someone might shed some light on the oring omission.