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  1. Engine & Performance
    Here’s an odd one, I have a 2006 Express 3500 with the LQ4 6.0l. I bought it back in 2017, and has had the check engine light on since the day I bought it. The only code is P0430, catalyst below efficiency threshold bank 2. I never really worried about it, noticed the previous owner installed a...
  2. Under Construction
    Hey guys, we'll its been about.. 10 years since I've posted here. But ever since I've always wanted a Suburban 2500 as my dream truck. Well, the day has finally come. After 5 years of actually searching, I've found the truck that ticked every box I was looking for. Okay yeah, she's a bit of...
  3. Engine & Performance
    I have a late model 2007 Silverado and I’m trying to figure out everything I need to swap it I have the lq9,4l80stage 2 and the diff has 4.10 posi gears installed but I don’t know what I need to do the full swap and if it will pass smog
  4. General GM Discussions
    I have a 2004 silverado 2500 6.0 with a 4l60e trans. When I am doing 80 on the freeway, it runs at 3000 rpm. Does this sound right? The shop that had just rebuilt my trans had said that my p0300 (random misfire) code is keeping my torque converter from locking up. Does this sound right?
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