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Best gasket material for diffs?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Pugsley, Aug 2, 2001.

  1. Pugsley

    Pugsley 1/2 ton status

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    What's the best all around diff cover gasket material? Cork, rubber, paper, RTV? My rear oozes a tad, and I need a oil change anyhow - TIA for any replies.

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  2. rampage

    rampage 1/2 ton status

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    The first time I pulled the diff cover off I used a cork gasket and it leaked. Ever since then I've always used the blue RTV and have never had a leaking problem since.
     
  3. Chaz88K5

    Chaz88K5 1/2 ton status

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    RTV i have always had good luck with

    Donations accepted for the "Build Chaz's 1972 K5 fund"!!!
     
  4. Pugsley

    Pugsley 1/2 ton status

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    Cool - I can do this without running to Napa! Thanks guys!

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  5. Bubba Ray Boudreaux

    Bubba Ray Boudreaux 1 ton status

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    I tried black RTV once and didn't get it, so now I always use a gasket. Last one I just made myself. Also, little tip.....Don't know anything about blue RTV but I used some Mopar gray RTV this last time. It was left over from when I worked for Dodge. It dries FAST!!!!! Is this just normal I can buy it at Pep Girls type of stuff or manufacturer specific?

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  6. Pugsley

    Pugsley 1/2 ton status

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    I've got a jumbo tube of Caterpillar gray stuff that I absconded with, and it dries real fast too - it's the best I've ever used.

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  7. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Like Rampage, I use Permatex Ultra-Blue and have never had a problem. Just make sure you clean off all the old gasket material(REALLY IMPORTANT) and when you apply the silicone go around the bolt holes in a full circle, as opposed to just a half circle..........



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