| [GMCnet] Differences between the 73, and 78. More then I thought. [message #296858] |
Mon, 07 March 2016 00:56  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Tom McManus was so kind to give me the part of a door I needed. And the top, and bottom of the door jamb. And I ended up finding out the there are several differences between the two years of their doors. No big deal. I just worked it out. Looks great. Saturday I fit the right vertical door jamb with the outside wall section that's attached to the jamb. So today I thought I'd checked the fit of the upper,and lower 7.5 inch jamb sections. Top was the same for both GMC's. But the bottom was way different. Infact the 73 bodyrocker section was unuseable without a lot of work. The convertible GMC obviously had the top section gone. But the bottom was still there. That's when I found out the rest of the story that the 78 GMC has a much heavier complete rocker area. So someone out there know's when that change was made.Bob Dunahugh
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| Re: [GMCnet] Differences between the 73, and 78. More then I thought. [message #296866 is a reply to message #296858] |
Mon, 07 March 2016 08:06  |
bryant374
Messages: 563
Registered: May 2004
Location: Pleasant Valley, NY 12569
Karma: 1
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Senior Member |
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Bob,
There were a few changes every model year, some were running changes, some were by actual model year. The 1975 model year had the greatest number of changes, by far!. Most of the body changes you are seeing were most likely iniated in 1975.
Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
GMC Motorhome History
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