Do you have to use a gasket when replacing the differential fluid or could you just use silicone?

 

gasket.. DEFF

If your taking the diff cover off, then put on a new gasket

 

some of the threads I read say they only put silicone on it. and I saw this DIY thing that said you use silicone and a gasket. And I have no I dea where to get a gasket at I don't think that advance auto or autozone carries gaskets right.

 

buy the blue or black rtv, its much easier to use than a gasket that will probably leak.

 

Thanks Guys!