General Motors used their “Product Description Manual” to communicate with the assembly plant how to build the GMC motorhome. It is a great resource that is helpful even today to understand details about exactly how the vehicle is put together, answering many questions that the service manuals do not address. This large document has been split into two halves, each of which starts with the clickable index to help you navigate through it’s 900+ pages.
Product Description Manual index plus Body
Product Description Manual index plus everything except Body
A GMC motorhome got you here….