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1973-1978 GMC Motorhome Information
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_________________________________________________________________________________________________________
Internet Idiot's Guide for
GMC MotorHome
Information
GARY BOVEE
gary.bovee@gmcidiotsguide.com
Revised July 2014

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Summary of Contents for GMC MotorHome

  • Page 1 1973-1978 GMC Motorhome Information Page 1 _________________________________________________________________________________________________________ Internet Idiot’s Guide for GMC MotorHome Information GARY BOVEE gary.bovee@gmcidiotsguide.com Revised July 2014...
  • Page 2 • Manuals, Wiring Diagrams, Floor Plans, Paint Codes, etc. • Rebuilding the Olds 403 and 455 • GMC MotorHome Generator (Troubleshooting the Onan) • GMC Motorhome Parts and Service Suppliers, Publication Listings and Service Parts Cross References • GMC Technical Information, GMC Photo Archive and GMC Motorhome Registry •...
  • Page 3 This author does not guarantee or evaluate the accuracy of any information found on any of the Internet links listed in the Idiot’s Internet Guide to Finding 1973-1978 GMC MotorHome Information. Any use made of such information is entirely at your own risk.
  • Page 4: Table Of Contents

    Buyers’ Checklist; Links and Tips for Searching for a GMC Motorhome; Restoration Costs and Restoration Project Links ................... 6 Chapter 3 Now that I Purchased a GMC Motorhome, What Next? Manuals, Wiring Diagrams, Floor Plans, Paint Codes, etc....................Chapter 4 Rebuilding the Olds 403 and 455 Engines ............
  • Page 5: History Of The Gmc Motorhome

    Page 5 _________________________________________________________________________________________________________ Chapter 1 History of the GMC MotorHome If you are interested in the history of the GMC MotorHome, below are some excellent links. Link to the GMC Heritage Center — ✦ history.gmheritagecenter.com/wiki/index.php/The_GMC_MotorHome An historical view of the GMC MotorHome at the GM Heritage Center, the official on- line resource of GM’s history.
  • Page 6: Purchasing A Gmc Motorhome Buyers' Checklist; Links And Tips For Searching For A Gmc Motorhome; Restoration Costs And Restoration Project Links

    So You Want to Buy a GMC — ✦ gmcmotorhome.info/buygmc.html Buyer’s Checklist — ✦ gmcmotorhome.info/buyer.htm Links and Tips for Searching for Your Prospective GMC Motorhome — ✦ www.bdub.net/publications/gmcsearch/index.html Cost to Restore a GMC — ✦ gmcmotorhome.info/buygmc.html#cost Note: It may be necessary to copy and paste the URL into your browser window.
  • Page 7: Manuals, Wiring Diagrams, Floor Plans, Paint Codes, Etc

    Page 7 _________________________________________________________________________________________________________ Chapter 3 Now that I Purchased the GMC, What Next? Manuals, Wiring Diagrams, Floor Plans, Paint Codes, etc. This chapter is loaded with links to information that cover a very broad range from getting that old sleeping giant started, things to check before hitting the road, spare tools to take along, re- pair manual and wiring diagrams, paint codes, specifications (capacities and dimensions &...
  • Page 8: Rebuilding The Olds 403 And 455 Engines

    Shelby, Don “Big Daddy” Garlits, Don “The Snake” Prudhomme, Tom “The Mongoose” McEwen as well as many others. Mondello was also a GMC motorhome enthusiast later in life. He and has wife, Mary, were Eastern States and Dixielanders members in addition to attending a couple of GMCMI conventions.
  • Page 9: Gmc Motorhome Generator (Troubleshooting The Onan)

    Gene Fisher's Website — http://gmcmotorhome.info/list.html#GEN Onan Generator Trouble diagnosis by Onan — ✦              http://www.youtube.com/watch?v=tJcwLyrHMq4&feature=gv&hl=en GMC Onan Power Drawer Electrical Trouble Shooting Demo - Duane Simmons - ✦ “Mr. Onan” — — General Information — Pre-Trouble Shooting Activity —...
  • Page 10: Gmc Full Service, Parts And Repair Facilities

    Hard to find parts. Complete restoration service including me- chanical, exterior, and interior maintenance Applied GMC and upgrades. Most GMC parts available. A Jim Kanomata Cinnabar certified GMC repair shop. 47627 Kato Rd. Southland Motorhome Center Fremont, CA 94538 510-440-1101 Orders 800-752-7502 Zeb Frady, Zeb Jr.
  • Page 11 Quakertown, PA 18951 215-536-1246 Best Way RV www.kenlfreyautorepair.com 4648 Northwest Grand Ave freykjgmc@yahoo.com Glendale (Phoenix), AZ 85301 Service and repair of GMC Motorhomes. 623-934-5295 MGM-GMC Service and repair (formerly Bob Lamey Enterprises) Bob Stone Miguel Mendez 5436 E. Holt Blvd., Garage C-1...
  • Page 12: Gmc Suppliers And Publications

    Chapter 7 GMC Suppliers and Publications This is an extensive listing of parts suppliers that support the GMC MotorHome community as well as a listing of publications that add to the body of knowledge within that community as well as serving as an archive...
  • Page 13: Adohen Supply

    707-443-8523 bryant374@earthlink.net curtisunlimited@aol.com www.bdub.net/billbryant/ www.bdub.net/curtis-unlimited Historical documentation and showroom Steering column boot set, jack pad bracket, oil presentations about the GMC MotorHome on coolers, body pad set, SS Electrolevel air tank digital media. and manifold. Paul Burkhart Pueblo, CO 719-542-0555 bpburkhart@comcast.net...
  • Page 14: Custom Instrument Panels

    High Ridge, MO 63049 Art Woodell 636-677-2277 Orders 800-654-0374 PO Box 178 gatewaygmc@yahoo.com Madera, CA www.gmcmotorhomeparts.com 559-665-1546 Large selection of GMC parts digidevices@highstream.net Golby Motors www.digi-panel.com 485 E Donegan Ave Systems monitor with emergency alarms Kissimmee, FL 34744 DMAR Enterprises...
  • Page 15: Leigh Harrison

    Sunscreens for all windows www.bdub.net/ Frank Jenkins GMC_Motorhome_Wiring_Diagrams.pdf 18214 478-320-5974 N.E. 21st St Gainesville FL 32609 352-485-1397 Super-Sized GMC Motorhome Wiring gmcfrank@juno.com Diagrams http://sites.google.com/site/gmcfrank/ Ken Henderson GMC fiberglass & aluminum fabrication. 110 O’Hara Road Instrument panels, bumper covers, toolboxes, Americus, GA 31719 grills, skirts and flares, radiator fan shrouds.
  • Page 16: Tom Lins

    Eric Gibbons gibbonsmailbox@infostation.com 705-327-0417 530-447-5302 Rear overhead cabinet, several finishes, New Dash Lights and Labels for your provide that little extra storage the GMC Instruments Panel desperately needs; in Michigan. The Peek Family JR Slaten 3711 Enterprise Road 7702 Old Third Street Rd...
  • Page 17: Bob Sobrito

    Rear disk brake kit. Songer Consulting Terry Taylor’s GMC Nic-Naks Byron Songer www.dldesignstore.com/ 9821 Meadow Vale Drive GMC club name tags, drink coasters, Louisville KY 40242 replacement decals for most models, club 502-254-3371 license plate frames, etc., bsonger@songerconsulting.net Manny Trovao www.songerconsulting.net...
  • Page 18 Marana, AZ 85658-4159 classicgmcmotorhomes/ 520-744-1775 A social group on Facebook classic GMC armand@minniebiz.com motorhome fans. Members of the group may post www.gmcws.org photos and comments. Note, however, that this is Quarterly technical publication for members. not a technical group for Facebook.
  • Page 19 GMC. Gene Fisher’s GMC Technical Information Page This site has tons of information on how to repair and upgrade your GMC. MR.ERF, as he’s known, gleans the GMCnet gathering great ideas from other, knowledgable owners then archives it here ac- cording to subject.
  • Page 20 Chapter 9 GMC Motorhome Clubs Below is a list of links to GMC motorhome clubs across the US and Canada. Also, a number of these sites have technical information available on their web site for anyone to view. Go check them out.
  • Page 21 GMC motorhome through technical presentations at rallies. GMC Yankee Clippers Its membership is drawn from the New England States. Family Motor Coach Association (FMCA) www.fmca.com To become a member of a GMC club you must first be a member of FMCA. Revised July 2014...
  • Page 22: Gmcnet - Your Link To The Gmc Community

    I don’t think enough can be said about the GMCnet and what it means to the GMC community. If you need information on how to repair your GMC, where to find a part, etc., there will be community member happy to help you find the information you’re looking for.
  • Page 23 Copies are available in PDF or Excel format. I suggest you download and printout a copy to carry in your motorhome or you can keep it stored on your laptop or memory stick that you carry in your GMC.
  • Page 24: Promoting The Gmc Tze

    As GMC owners, we are all interested keeping these great machines alive and on the road for many more years to come. Byron and I believe it is in every GMC owner’s best interest to be ready to promote these coaches when the opportunity arises. To that end we are providing a business card template available for download that shows the web address to the Internet Idiots Guide for GMC MotorHome Information.
  • Page 25 Out of respect for other material in existence that refers to the product as “GMC Motorhome” we have retained that term which refers to any configuration of GMC chassis and body regardless as to whether it was finished by GMC or other upfitters such as Coachmen.
  • Page 26 GMC MotorHome Information Page 26 _________________________________________________________________________________________________________ CD/DVD Label Use the following graphic to print a CD label for this guide. The CD can be used to give to a friend or prospective owner. You may access the label at the URL provided below. Note that the graphic is available as a 150 dpi image.

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1974 motorhome

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