Rear Dif Fluid Change Question

[12glocks]

Can anyone advise me if it would be alright to use teflon tape on the rear dif plug threads when I close it up. I have some on hand. Or do I need another product?

Thanks to all in advance.

[Mr. B]

I didn't use anything on the threads when I buttoned mine up....come to think of it, I never have and I've changed rearend oil many, many times over the years....If you want to use it I don't think it would hurt anything.

[XRING600]

Use an RTV sealer such as Permatex. The tape may not be the best thing to use especially as hot as the rear can get when towing.

[bestatchess]

Use Permatex High Performance Thread Sealant

or Permatex High Temperature Thread Sealant

should be available at locat auto parts store.

[skyhammer]

I know from experience that Teflon tape and petroleum products don't mix. Especially when you heat and pressure.

[12glocks]

Thanks you very much gentlemen for your responses. While I suspect Mr B is correct: no harm will come, I noticed it has a compound on the thread from the factory. Being a bit of a perfectionist, i will look for the high temp version.

Thanks again.

[SOCALTITANKC4X4LE]

There is no need to put thread sealant on the diff. plug. The gear oil is not pressureized.