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12-05-2011, 04:16 PM | #1 |
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10 20 30 1/2 3/4 1 Ton
Ok I wanna figure this out finally, ive always figured 10 is half ton, 20 is 3/4 and 30 is 1 ton but I've seen some odd things like a 20 with duals....so?
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12-05-2011, 04:39 PM | #2 |
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Location: Marianna Arkansas
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Re: 10 20 30 1/2 3/4 1 Ton
Gmc did the 1500 2500 3500 thing that should help in the confusion. That might lend to the theory that GMC trucks are tougher[ can you hear the worms coming out of the can I just opened?] Auctally , most of that about GMC being better goes back to a time when they had air filter systems that worked better and that made the engines last longer. any way, back to your question I don't think the dual wheels were ever a 3/4 ton option i've never seen one. Most likely you saw one that someone put heavier stuff under.
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12-05-2011, 05:44 PM | #3 |
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Re: 10 20 30 1/2 3/4 1 Ton
The 10,20 and 30 number all represent GVW weight ranges. For GM of this time period I'm showing:
1-3900-5800 lbs 2-5200-7500 lbs 3-6600-14,000 lbs And yes, it was possible to order dual wheels (RPO RO5) on a C20.
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12-05-2011, 06:30 PM | #4 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
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Re: 10 20 30 1/2 3/4 1 Ton
Drw could in fact be ordered on a c/20 if it was a cab/chassis only.
You are right on the half ton being a 10, a 3/4 ton being a 20 and one tons are 30 series. Posted via Mobile Device |
12-05-2011, 06:31 PM | #5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
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Re: 10 20 30 1/2 3/4 1 Ton
I shoulda hit refresh first huh?
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12-05-2011, 08:32 PM | #6 |
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Location: Maine
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Re: 10 20 30 1/2 3/4 1 Ton
Well, seems there's exceptions to everything. Here's a couple pics of the original paper work that came with my truck. There were 1103 flatbed C20's ordered in 1968 (according to the resto-pack people), and the dual rear wheel conversion was available at the factory. Chevrolet didn't keep track of anything that was less than 1% of a production run so it didn't happen very often, but there's 11 or less of the factory C20 dually's running around. I know of two.......
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12-05-2011, 11:00 PM | #7 |
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Re: 10 20 30 1/2 3/4 1 Ton
You guys know a lot more about these big trucks than me by far .,,.but what the heck does "dual rear chassis provisions" really mean ???
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12-06-2011, 12:38 AM | #8 |
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Join Date: Feb 2011
Location: madison, IN.
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Re: 10 20 30 1/2 3/4 1 Ton
longer wheel studs to acomidate 2 rims in the rear, mabey??
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