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Old 05-17-2016, 02:01 PM   #1
manimal
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2 gvw's on same truck?

I am have a 73 C20 and the gvw(s) are very cornfusing to me???
Anyone able to esplain this? Thanks
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Old 05-18-2016, 10:32 AM   #2
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Re: 2 gvw's on same truck?

No one?
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Old 05-18-2016, 12:54 PM   #3
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Re: 2 gvw's on same truck?

"As manufactured" is the way your specific truck was equipped with it's own option content.

"Maximum" is the most you could get with any combination of available tire and suspension components.

For example, maybe the person who ordered your truck chose RPO C6C such that the GVW was limited to 7500lbs, based on whatever the weak link is (tire load range, rear springs, front springs, front axle, rear axle or frame).

If a person wanted they could have ordered RPO C6N, which would be the maximum anybody could have for that particular model (at 8200lb GVW).

K
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Old 05-18-2016, 01:12 PM   #4
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Re: 2 gvw's on same truck?

My 73 K20 had the same plate.

It came with 8 ply tires, hence the 7500 limit "as manufactured" but if you switched to 10 ply tires then it could carry 8200 with no other modification.

Those were tough trucks. I sometimes well exceeded GVW with no problems other than blown tires.

I just wish that I had ordered it with manual four speed - then I might even still have it today
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Old 05-18-2016, 01:56 PM   #5
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Re: 2 gvw's on same truck?

Thanks guys! here is the SPID...were there 2 different frames for 73?
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Old 05-18-2016, 03:50 PM   #6
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Re: 2 gvw's on same truck?

Quote:
Originally Posted by manimal View Post
Thanks guys! here is the SPID...were there 2 different frames for 73?
No (why do you ask?). The changes were made via selectable components (tires, springs, etc).

Back then a 1/2 ton was a 1/2 ton* and a 3/4 ton was a 3/4 ton.; There weren't LD and HD 3/4 tons like there are today.

K

*well, except for the "Heavy Half"...
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Old 05-18-2016, 04:26 PM   #7
1976gmc20
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Re: 2 gvw's on same truck?

Quote:
Originally Posted by manimal View Post
Thanks guys! here is the SPID...were there 2 different frames for 73?
That ain't right ... the K20 wasn't available with 454 in 1973.

I think VIN should be "CK..." not "CC..."
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