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08 duramax

  1. General Discussion
    I just recently picked up and 08 Sierra LMM, but I’m having trouble with my 4x4. The indicator takes a while to say its in 4x4, but it engages the transfer case just fine and spins the front drive shaft. I also replaced the actuator on the front differential, but it’s still not working, and I...
  2. Performance Upgrades
    Hi, i am new to the site and i just got my first duramax. i am looking to do some upgrades on it. i wanna start out doing an air intake, programmer, and exhaust. i have decided on a afe stage 2 intake and an mbrp single stack. the many thing is i dont know what programmer to go with. everyone i...
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