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RTV or Gasket For Rear End Diff Cover?

This is a discussion on RTV or Gasket For Rear End Diff Cover? within the Drivetrain forums, part of the LSx Technical Help Section category; I'm about to change the rear end diff fluid in my 98 Z28 and wanted to know if I should ...

  1. #1
    Junior Member Boat's Avatar
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    Black
    98 Z28 Vert

    RTV or Gasket For Rear End Diff Cover?

    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.
    Last edited by Boat; 05-20-2008 at 08:48 PM.

  2. #2
    Asshole bige97's Avatar
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    Red
    '01 Silverado

    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.

  3. #3
    Senior Member INMY01TA's Avatar
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    2001 Trans Am (sold)

    I use black silicone, no gasket.

  4. #4
    Junior Member Boat's Avatar
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    98 Z28 Vert

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

    Thanks again...

  5. #5
    Senior Member splitfinger09's Avatar
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    Bright Rally Red
    2000 Camaro SS #5075 M6

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

  6. #6
    Something Diabolical... chuckie669's Avatar
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    2000 C5 Torch Red

    Quote Originally Posted by splitfinger09 View Post
    I used the ultra high temp red RTV silicone with no gasket. No leaks with 10k since fluid change. Recommended fluid is 75w-90.
    same here. red 4 me.

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