I don’t think enough can be said about the two GMC forums and what they mean to the GMC community. If you need information on how to repair your GMC or maybe where to find a part, etc., there will be community member(s) happy to help you.
The forums exist for the purpose of exchanging information and promoting discussion about the motorhomes manufactured by General Motors Corporation (GMC) from 1973 to 1978.
Discussion about all aspects of the GMC MotorHome and the mutual interests of their owners is encouraged.
The forums are an open subscription list. No qualification is required to join, nor is ownership of a GMC motorhome a prerequisite. The only requirement is a genuine interest in the GMC MotorHome or TransMode.
GMCnet Forum: Click here.
GMCnet Forum, Swap Meet: Click here.
GMCnet search archive: Click here.
There is also the 'GMC Motorhome Forum', launched in 2019 which includes improved search capability, support for mobile browsers, and online photos and videos.
GMC Motorhome Forum - Click here.