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Changing air brake system from straight truck to tractor


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selling three GU713's (stock trucks). trucks are straight truck now, have to change over to tractor trailer air system. have most of valves figgured out. not sure on all of plumming. has anyone done any before?looked through service bulletin was some help, but want to be 100% sure. any help would be great

AIR BRAKE ROUTING SCHEMATICS.pdf

Tom ~ Parts & Service Specialist

Watt's Mack Sales, Inc. 1-888-304-6225

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We did one in our shop but I wasn't directly involved in it. I remember it got pretty hairy because the customer wanted to be able to remove the 5th wheel and install a body load water tank whenever he needed to. Kind of a quick change setup.

"Mebbe I'm too ugly and stupid to give up!"

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