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2008 GMC 4500 LMM 6.6L - wanting to buy and needing to research any and all info for these trucks

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Hello forum members,


Any help with identifying this 2008 GMC 4500 LMM 6.6L - 197,645 on odometer (County fleet vehicle)


I am new to these trucks, have heard nothing but good info about them


Am I correct this is an Isuzu engine build ?


I did find enough VIN info to know its an LMM, beside that I know nothing more than what I have read about dependability etc...


I would like the forum to school me what I need to be focused on etc...


Being a county fleet vehicle and the limited info they have provided - I sent a VIN & Build Sheet request to GM however I have no ide how long it may take for them to get back to me







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