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    2005 C5500 Utility Body 4x4 LLY Mods

    I'm thinking about modifying my truck. 1st thing I'll install a FASS Lift Pump. I believe the turbo is going so I was going to go with an upgraded turbo. Also I probably should get a mild to medium tune. Does anyone recommend any modified air filter intakes, exhaust, turbo, and tunes ? Any...
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    GMC / Chevy C4500 C5500 TopKick Kodiak 5 speed to 6 speed Conversion

    Wondering if anyone knows the answer to my question ? So, I am aware that in a 2006 - 2007 GMC / Chevy C4500 C5500 TopKick Kodiak you can replace and reprogram (with a TECH2 and maybe other software etc...) the TCM with a 2008 2wd or 4wd VIN# and you'll go from a 5 speed to a 6 speed...
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    LLY: New Cp3 leaking

    Also forgot to mention my fuel gauge was reading empty on a 1/4 tank and that the the sending units were plugged up. Had to replace the rear sending unit because it was rotted from a horrible design of the rear tank that lets the unit sit in a bowl allowing all kinds of stuff to accumulate...
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    LLY: New Cp3 leaking

    This old thread was very helpful to me, so thanks everyone ! I ended up replacing two reman CP3’s and both leaked until I decided to drop both tanks and clean them out and their sending units which were pretty dirty, and blow out the return line, but after cleaning, replacing and reinstalling...