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02-20-2016, 11:18 PM
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#1 |
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Registered User
Join Date: Dec 2006
Location: Midlothian, TX
Posts: 87
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73-87 frame differences
Hey guys. I have a 1977 2wd SWB C10. I'm thinking about building up a swb frame to my liking w/ some PB and other suspension parts as a side project. Once it's built up I'd like to swap my current bed/cab/clip over to it. Bottom line will any 73-87 frame work? Any major differences between the years? Cab mounts, dimensions etc. I want to be able to drive my truck and not rip it apart to build it up how I want.
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02-21-2016, 02:52 AM
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#2 |
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Registered User
Join Date: Dec 2004
Location: grand terrace , caifornia
Posts: 338
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Re: 73-87 frame differences
Your better off using a frame from 73-80. The 81 up frame will work but your going to run into problems.
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02-21-2016, 01:22 PM
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#3 |
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Registered User
Join Date: Sep 2007
Location: Wichita Falls, Texas
Posts: 459
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Re: 73-87 frame differences
The core support mounts are in a different spot and the frame horns are different for sure.
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02-21-2016, 02:08 PM
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#4 |
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Registered User
Join Date: Nov 2014
Location: Alameda, CA
Posts: 877
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Re: 73-87 frame differences
I believe there are some differences in frame height/thickness over the years as well, I don't know how significant they are.
https://www.gmheritagecenter.com/doc...olet-Truck.pdf claims the section modulus for a 73 C10 SWB is 3.06 https://www.gmheritagecenter.com/doc...olet-Truck.pdf claims the section modulus for a 79 C10 SWB is 3.14 https://www.gmheritagecenter.com/doc...olet-Truck.pdf claims the section modulus for an 87 R10 is 3.10 I know I've seen more significant differences for 3/4 tons. And yes, bumper/core support mounts are apparently a little different as well.
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1973 C20, 350/350 |
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