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Old 09-11-2010, 08:01 PM   #1
Buick455
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1/2 ton vs 3/4 ton frames (86/87 build project)

From everything I have read the 1/2 ton and 3/4 ton frames were the same but they are not. My 1/2 ton 86 frame web width is narrower in the rear section in two spots than the 87 3/4 ton. I was thinking of using the 1/2 ton frame as the cab I am using is sitting on it but as I am springing it for a 3/4 ton I guess I am now using the 87 3/4 ton frame. The difference may not be that big of a deal but I might as well just go with the heavier frame as the work isn't really that much more.

Last edited by Buick455; 09-12-2010 at 07:43 PM.
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Old 09-11-2010, 10:29 PM   #2
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Re: 1/2 ton vs 3/4 ton frames

Sounds like a solid plan. Post pics of your progress.
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Old 09-12-2010, 07:35 PM   #3
Buick455
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Re: 1/2 ton vs 3/4 ton frames (86/87 build project)

Here are a couple photos of the differences in the rear section of the 86 1/2 ton and 87 3/4 ton frames (the 3/4 ton does not have the notches).
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Last edited by Buick455; 09-12-2010 at 07:45 PM.
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Old 09-12-2010, 07:41 PM   #4
Buick455
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Re: 1/2 ton vs 3/4 ton frames (86/87 build project)

I lifted the 87 cab off the frame today and also removed the 86 bed. Hear is a photo of my set-up. I made a spreader beam for my backhoe which slides over my round bale forks. It is 8' long so it does not squeeze the cab or bed. It worked great.
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Last edited by Buick455; 09-12-2010 at 07:45 PM.
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Old 09-13-2010, 01:15 AM   #5
87GMCChris
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Re: 1/2 ton vs 3/4 ton frames

Cool setup... now all i need is a backhoe..
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Old 09-13-2010, 08:08 AM   #6
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Re: 1/2 ton vs 3/4 ton frames

A Backhoe is a handy tool to have.
Now I have to finish stripping the 87 frame so I can sandblast and paint it.
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