I just changed my rear diff fluid today and decided to pull the cover off to take a look inside. Now when I put my cover back on it slid alittle bit if i doesnt leak which I dont know yet it is still drying, am I ok what I am worried about is some globs of rtv falling down in the diff. case. Would that cause any harm should I rip it off and do it again? Really dont want to have to do that.