Originally Posted by SenorFunkyPants
Hmmm of course there is the alternate solution which is to leave it as it is...its a high performance diff which can make some noise...especially when cold and on tight turns.
Adding extra slip agent to a system which requires a high level of friction in order to function as designed is to some folk a bit of a mistake.
SFP sounds more informed than me, but his argument seems perfectly sound. In engineering, there are always trade offs. Nothing is the strongest AND lightest possible design. You want to get rid of a noise caused by excess friction in non performance driving situation, you may sacrifice some of the effectiveness of you diff in performance situations.