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  1. Vans
    Looking for information and advice... Is there a specific bolt up 4in straight exhaust I could use for my 06 gmc savana 3500 ( non extended) . I was told 4 wouldn't.work and just to cut out converter and muffler and use stock size pipe...also looking into a possible programmer. Or a single tow...
  2. Allison OEM
    I got a LBZ for my swap and I'm in the market for a transmission to pair with it. What years of the allision work with LBZ? Is it just 06-07 or some more later years too? I know 05 and previous don't work at all. If some later years work is there any special setup or is it get that year tcm and...
  3. Drivetrain - 2001 - 2010
    Occasionally my abs lights comes on so today I pulled codes and got C0035 and C0040 which is for both front wheel speed sensors. I also have an issue where when I hit 15kmh while braking the abs kicks on a pulses and the truck slams to a stop. Both front wheel speed sensors are reading. Anyone...
  4. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    Radio and lights turn on as soon as battery’s are connected throttle cuts in and out and tuner is frozen (bully dog gt)
  5. Duramax Seventh Generation: 2020+ (L5P)
    Hey All, It’s been a while since I’ve been on here. I currently have a 2007 LBZ with 165000 on the clock. Most of my issues with the truck were the result of a defective factory paint job. This resulted in numerous trips to the body shop on my dime. Everything else was maintenance related work...
  6. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    New to site, I have 2006 LBZ all stock and am looking to install a 4” straight pipe. Called diesel performance shop and they told me I would need a tune on the truck otherwise I would go into limp mode. I have never heard that before. Any help would be appreciated.
  7. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    I have a 07 LBZ that is throwing a code for low fuel rail pressure. It only does it when ambient temp is over 90’F and I’m towing at highway speeds. I already replaced the fuel rail relief valve and the fuel filter and now I’m suspecting one or more injectors may be bad. I have noticed a...
  8. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    Noticed this leak after just driving regularly down the road thought it was ac but I still have ac the next morning it was some sort of green fluid, it sprayed all over anyone know what hose this is ? And why it blew.
  9. Builds
    I have a 86 Chevy c30 crew cab I'm currently fixing to begin a lbz swap I have a 07 gmc 2500hd donor truck I've seen plenty of these swaps done where are they getting the engine mounts from since the factory Duramax mounts are offset any information is appreciated and thank you in advance.