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  1. CostaMesa H2

    Gauging interest in some H2 items

    Hello, do you have any 2009 H2 parts for the interior? I am looking for the A/C buttons, mine are worn off. Also, I am looking for the 4x4 rotary switch, the switch is on the dash board it dials between 4H and 4L lock
  2. CostaMesa H2

    Roll Call. What motor is under your hood.

    2009 H2 - a one yr old 11k miles, installed as new l9h w/new Magnuson supercharger
  3. CostaMesa H2

    Custom built hummer h2 bumper mounted tire racks

    I am interested, I will call you
  4. CostaMesa H2

    Service 4WD, Stabilitrak, traction control messages

    It happened on my H2, it turned out the wiring harness fell a bit and was laying on the tranny and wire got hot and melted. That was one time, the other time it happened to me it was the clutches in my tranny 4, 6. Yes, its happened 2x to me, I rebuilt my 6l80e to a stage 3 tranny now its...
  5. CostaMesa H2

    Did the H2 ever have a single speed t case?

    Just put this on my 2009 H2 bcuz I put in 4.88 gears so I upgraded a lot of other things
  6. CostaMesa H2

    New to the forum From Southern California

    Ok I'm off Fairview & 405 fwy
  7. CostaMesa H2

    New to the forum From Southern California

    I just put in new 4.88 gears, axles from RCV in Pennsylvania and Kryptonite suspension
  8. CostaMesa H2

    L92 & l9h h2 whp?

    I just put in a new L9H motor & Magnuson supercharger...I believe its got 532 horsepower now...I've got a 2009 Hummer H2
  9. CostaMesa H2

    New to the forum From Southern California

    Thanks, yes I live in Costa Mesa
  10. CostaMesa H2

    New to the forum From Southern California

    Hi everyone, I'm new too but have been upgrading my H2 to 2022 this year lol. Put in a new l9h motor, re-did the l680 tranny & xfer case, driveshafts etc, put in all that kryptonite had to offer, and just put in a magnuson supercharger and 4.88 gears and had RCL in Pennsylvania make custom axles...
  11. CostaMesa H2

    Tire Size

    I have 37x13.50x22 and there's a smidge of rubbing at full lock. I've got my keys set for 2" higher to level it out and its rides great. I also put in custom axles from RCV in Pennsylvania and Kryptonite front end everything they make and put in 4.88 gears
  12. CostaMesa H2

    Re-gearing misconceptions and questions

    Hi Everyone, I've got a H2 that has 37's so I'm going to install 4.88 gears in about a week and get it re-tuned / programmed for the gears. I'll post a picture of it shortly
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