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International Automotive Technicians Network
Re: 2007 GMC topkick IPC
Posted to HD/Fleet Forum on 3/22/2018

The tech 2 doesn't ask for the Candi Module? I think this truck may need it. I have one also, GMC C7500, 8.1 Liter, and had Allison Problems. Normally building it as 2007 won't give me access to Trans. Had to built it as 2005, since I do not have the Candi. I ... Login to read more.