RTV or Gasket For Rear End Diff Cover?

[Boat]

I'm about to change the rear end diff fluid in my 98 Z28 and wanted to know if I should order the gasket or just use black RTV gasket maker. In my old 3rd gen 9 bolt I just used the black RTV and it worked great with no leaks, I just wanted to ask you guys what you recommend for the 4th gens.

Thanks.

[bige97]

get the ultra black it's better i had a permatex rep come to school and the blue and black have so kind of acid in them and the ultra are the best to use.

[INMY01TA]

I use black silicone, no gasket.

[Boat]

That's what I planned to do, I just wanted to confirm.

Thanks again...

[splitfinger09]

I used the ultra high temp red RTV silicone with no gasket. No leaks with 10k since fluid change. Recommended fluid is 75w-90. :goodluck:

[chuckie669]

I used the ultra high temp red RTV silicone with no gasket. No leaks with 10k since fluid change. Recommended fluid is 75w-90. :goodluck:

same here. red 4 me.