SM420 PTO cover

Discussion in '1947-1954' started by Bill Hanlon, May 4, 2015.

  1. Bill Hanlon

    Bill Hanlon Member

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    Anyone know where I can buy a PTO cover gasket for an SM420 transmission in my '52 GMC 150? Mine is leaking a bit.

    Tried Classic Parts and Novak's web sites with no luck.
     
    Last edited: May 4, 2015
    Bill Hanlon, May 4, 2015
    #1
  2. Bill Hanlon

    Bill Hanlon Member

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    Rock Auto lists Felpro TS5100 but doesn't say if it is for a 3 speed or 4 speed. Picture looks to be for a 4 speed.

    Felpro TS5100
     
    Bill Hanlon, May 4, 2015
    #2
  3. ccharr

    ccharr Member

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    Couldn't you just make your own gasket or use try using some Permatex 81160 High-Temp Red RTV Silicone Gasket for it? The guys replacing the rear-end pumpkin cover use just a silicone gasket maker. That is what they used on my 342/1 when they put it in.
     
    ccharr, May 4, 2015
    #3
  4. jackson

    jackson Member

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    Try Novac.
     
    jackson, May 4, 2015
    #4
  5. vwnate1

    vwnate1 Member

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    Gaskets

    Me , I'd scrape & wire brush it HOSPITAL CLEAN then lay a thin 3/16" bead of Permatex " The Right Stuff " ~ you have to try this newfangled stuff to believe it ~ nothing else comes close .

    I use it everywhere now and never a leak weep nor seep ~ that's saying something when it comes to 1930's Tech engines .
     
    vwnate1, May 7, 2015
    #5

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