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    Dreaded GM 3800 intake manifold gasket problem?

    Is the APN a name of a manufacturer for the LIM kit and is the "Sure Fix" their "brand"? Can't find anything about them. Thanks for the link below where I see I can buy them, but still confused on the mfg. and brand...
  2. E

    Dreaded GM 3800 intake manifold gasket problem?

    Is the APN a name of a manufacturer for the LIM kit and is the "Sure Fix" their "brand"? Can't find anything about them. Thanks for the link below where I see I can buy them, but still confused on the mfg. and brand...
  3. E

    Dreaded GM 3800 intake manifold gasket problem?

    Thank you all for your feedback. I shop guite a bit at Rockauto.com, but have been unable to find the APN UIM kit. Any thoughts? I believe that I already have the smaller dia egr chimney and steel sleave since the UIM gasket was replaced. I plan on ripping into this project this weekend...
  4. E

    Dreaded GM 3800 intake manifold gasket problem?

    Who makes the best manifold gaskets? I need to replace both the upper (last one lasted about 70,0000mi after being changed at a shop, including the plenum), and now it looks like the lower is leaking as well. I would like to use the best one thats out there to increase my chances it will last...
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