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  1. S

    Denali AWD disappointing

    I believe you have a posi rear end. I have found it works fine if you slowly roll on the gas you can feel the rear begin to spin and then feel the fronts come on. You then walk out. That has been my experience.
  2. S

    Tahoe/Yukon Headlight Information Thread

    2001 Escalade to Denali Will 2011 Escalade housings fit a 2011 Denali and are they any better ?
  3. S

    hypertech programmer

    I have one on 11 Denali. It runs better and added about 3/4 to 1 mile per gallon. Shifting is improved for whatever reason. I had one on an 08 yukonxl SLT 6.0 and it really made a big difference.
  4. S

    HELP! Really odd problems...

    Just a wim. Try a separate ground wire directly from the battery to each head of the engine. Use #10 wire and be sure the contact to the head is to the bare metal so you have good contact. Sometimes the ground can do wierd things as we have found on our race engines. Even though you think you...
  5. S

    What does this wire do?

    That wire is for acc lighting in the trailer and to charge the trailer battery.Connect the wire to the underhood fuse box post at the front of the fuse box on the right side I believe. It is the post with no wire on it and if you look in the owners manual it will say it is a 40amp fuse ...

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