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Latest resources
DO NOT replace the main fusible link with a fuse or circuit breaker as recommended by some.
Important instructions on how to set the rear bearing axel nut.
A GM service manual on troubleshooting issues in the TH425 and TH400 transmissions
Replacing obsolete K3 relay with readily available parts
A detailed DIY document on the one-ton front end
Bill Hubler was one of the first to engineer and install the one-ton front end on a GMC motorhome
Template and instructions on how to open a locked entry door
Fuel Injection - EBL system IAC Control
2024-08-23
How the EBL system IAC control works.
Zay Brand's excellent document on dash HVAC operation and improvements
Top resources
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What every GMCer needs to knowA list of useful GMC MH information from soup to nuts!
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Universal joint in tilt steering column is wornI hope this fixes the last of the "play" in my steering
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Common GM wiring coloursHandy reference Guide of common wire colours used for various functions by GM
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Alternators, A good article on the Pros & Cons of one-wire VS OEM 3-wire alternators.Read this before switching to a one-wire alternator. Also warning of effects on fuel injection.
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Coachman "It's So Simple" UNI-LOUNGE ManualThis guide came tied to the Dinette in a 76 Birchaven when purchased new.- timthenomad
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