C30 GMC Dually - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**mongocanfly** · 05-13-2015, 08:33 PM

JD i am unaware and may be wrong of a wheel base change from 1980 to 1981. They did change between 72 and 73 though..67-72 swb is 115" lwb is 127" then from 73-87 swb was 117.5" and lwb was 131.5". so I would think any lwb bed would fit...1 ton may be different wheel base.. only change I know of in 81 was the new sloped hood design.

jdf915 · 05-13-2015, 08:46 PM

Quote:

Originally Posted by mongocanfly

JD i am unaware and may be wrong of a wheel base change from 1980 to 1981. They did change between 72 and 73 though..67-72 swb is 115" lwb is 127" then from 73-87 swb was 117.5" and lwb was 131.5". so I would think any lwb bed would fit...1 ton may be different wheel base.. only change I know of in 81 was the new sloped hood design.

There is a ;" difference because I measured my friends 84 c10 from the Back of the cab to the center of the axle and did the same measurement on mine and they were different.
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**mongocanfly** · 05-13-2015, 09:04 PM

I wouldnt know about that. May be a difference between 1 ton and pickup wheelbase, but thats the short and long wheelbases for pickups from 73-87. 117.5 and 131.5....cut and weld..make it fit..thats what i did to mine.

**special-K** · 05-13-2015, 09:33 PM

Nice truck to start with. Short cab & chassis trucks take a bed with 60" cab - axle measurement and longbed pickups take 56". No change in length 73-up. In fact, cab & chassis prior to '73 take 60", too. If that's a GMC then it's a C35. People call all dual rear 1 tons duallys, even other brands. GM coined the term for their new pickups but it wasn't dually, it was "Big Dooley"

GODFATHER · 05-13-2015, 10:04 PM

Mine is a GMC

jdf915 · 05-14-2015, 08:54 AM

Quote:

Originally Posted by special-K

Nice truck to start with. Short cab & chassis trucks take a bed with 60" cab - axle measurement and longbed pickups take 56". No change in length 73-up. In fact, cab & chassis prior to '73 take 60", too. If that's a GMC then it's a C35. People call all dual rear 1 tons duallys, even other brands. GM coined the term for their new pickups but it wasn't dually, it was "Big Dooley"

So let me get this straight, my cab is 4" longer than a standard pickup cab and any bed I like will fit?
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GODFATHER · 05-18-2015, 10:47 PM

So can someone tell me the measurement for a short bed compared to the long bed so I can make sure exactly what I have.

**mongocanfly** · 05-19-2015, 12:11 AM

Wheelbase for short bed is 117.5 in ,,, long bed is 135.5. But this would also depend on if someone has shortened or lengthend the frame "to fit" a certain bed..I looked at a couple before I bought mine and they had all been cut, mine came with the 164.5 wb which is why I had to cut out so much to make it a short wheelbase..mine was a regular cab on a crew cab chassis..just looking at your pics I think yours is short.

jdf915 · 05-19-2015, 03:03 PM

Quote:

Originally Posted by mongocanfly

Wheelbase for short bed is 117.5 in ,,, long bed is 135.5. But this would also depend on if someone has shortened or lengthend the frame "to fit" a certain bed..I looked at a couple before I bought mine and they had all been cut, mine came with the 164.5 wb which is why I had to cut out so much to make it a short wheelbase..mine was a regular cab on a crew cab chassis..just looking at your pics I think yours is short.

Mine is LWB. But what are the measurements from the back of the cab to the center of the axle that's where I see the difference in length.
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GODFATHER · 05-19-2015, 09:54 PM

Mine is 135.5

**mongocanfly** · 05-20-2015, 12:24 PM

Godfather.. mine is 135.5 now , its what I ended up with after I cut my frame .. I made my bed 8 ft long but it would have looked better if it was 8 ft 6 in.. it kind of looks bobbed off.

GODFATHER · 05-20-2015, 02:38 PM

So you think mine has been altered?

mrolds88 · 05-20-2015, 02:52 PM

Quote:

Originally Posted by jdf915

So let me get this straight, my cab is 4" longer than a standard pickup cab and any bed I like will fit?
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No. Cab is the same. The frame is 4" longer than a pick up frame. length was added between cab and axle for a longer wheelbase.

jdf915 · 05-20-2015, 03:30 PM

Quote:

Originally Posted by mrolds88

No. Cab is the same. The frame is 4" longer than a pick up frame. length was added between cab and axle for a longer wheelbase.

Now it all makes sense.
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**mongocanfly** · 05-28-2015, 09:23 AM

Godfather I found this pic while searching for dustless paint removal..this might give you some ideas..just a different way to go about it since yours is already lowered.

**mongocanfly** · 05-28-2015, 11:28 AM

Couple more pics

GODFATHER · 05-28-2015, 01:22 PM

Yeah I like that!

GODFATHER · 05-28-2015, 01:26 PM

Check this bad boy out. Fully bagged which is also in the plans.

**mongocanfly** · 05-28-2015, 02:44 PM

Yeah GF..a guy I work with showed me that one last night...he had a bunch more different pics of it to

GODFATHER · 05-28-2015, 03:57 PM

Damn!

jdf915 · 05-28-2015, 07:08 PM

I plan on 5" the other way.
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GODFATHER · 05-28-2015, 07:33 PM

Nothing wrong with that as long as it's not stock lol!

Ghostwhite · 05-29-2015, 08:47 AM

That bagged flat/service bed truck is very nice!

Only other truck I've seen like that is this one on duallyscene

**mongocanfly** · 05-29-2015, 12:53 PM

Looks good ghost..I had seen pics of that one before and if I had gotten a dually truck instead of a 1 ton I was gonna style my bed sides similar to that.. but not dragging the ground...I use my to pull heavy trailers to much..but it looks good.

GODFATHER · 05-29-2015, 02:36 PM

If ya build it right it can still pull just as much.

05-13-2015, 08:33 PM	#26
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually JD i am unaware and may be wrong of a wheel base change from 1980 to 1981. They did change between 72 and 73 though..67-72 swb is 115" lwb is 127" then from 73-87 swb was 117.5" and lwb was 131.5". so I would think any lwb bed would fit...1 ton may be different wheel base.. only change I know of in 81 was the new sloped hood design.

05-13-2015, 09:04 PM	#28
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually I wouldnt know about that. May be a difference between 1 ton and pickup wheelbase, but thats the short and long wheelbases for pickups from 73-87. 117.5 and 131.5....cut and weld..make it fit..thats what i did to mine.

05-13-2015, 09:33 PM	#29
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: C30 GMC Dually Nice truck to start with. Short cab & chassis trucks take a bed with 60" cab - axle measurement and longbed pickups take 56". No change in length 73-up. In fact, cab & chassis prior to '73 take 60", too. If that's a GMC then it's a C35. People call all dual rear 1 tons duallys, even other brands. GM coined the term for their new pickups but it wasn't dually, it was "Big Dooley" __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 05-13-2015 at 09:38 PM.

05-13-2015, 10:04 PM	#30
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Mine is a GMC

05-18-2015, 10:47 PM	#32
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually So can someone tell me the measurement for a short bed compared to the long bed so I can make sure exactly what I have.

05-19-2015, 12:11 AM	#33
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Wheelbase for short bed is 117.5 in ,,, long bed is 135.5. But this would also depend on if someone has shortened or lengthend the frame "to fit" a certain bed..I looked at a couple before I bought mine and they had all been cut, mine came with the 164.5 wb which is why I had to cut out so much to make it a short wheelbase..mine was a regular cab on a crew cab chassis..just looking at your pics I think yours is short.

05-19-2015, 09:54 PM	#35
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Mine is 135.5

05-20-2015, 12:24 PM	#36
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Godfather.. mine is 135.5 now , its what I ended up with after I cut my frame .. I made my bed 8 ft long but it would have looked better if it was 8 ft 6 in.. it kind of looks bobbed off.

05-20-2015, 02:38 PM	#37
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually So you think mine has been altered?

05-28-2015, 09:23 AM	#40
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Godfather I found this pic while searching for dustless paint removal..this might give you some ideas..just a different way to go about it since yours is already lowered. Attached Images

05-28-2015, 11:28 AM	#41
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Couple more pics Attached Images

05-28-2015, 01:22 PM	#42
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Yeah I like that!

05-28-2015, 01:26 PM	#43
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Check this bad boy out. Fully bagged which is also in the plans. Attached Images

05-28-2015, 02:44 PM	#44
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Yeah GF..a guy I work with showed me that one last night...he had a bunch more different pics of it to

05-28-2015, 03:57 PM	#45
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Damn!



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05-28-2015, 07:08 PM	#46
jdf915 Registered User Join Date: Dec 2014 Location: Mt. Juliet Posts: 85	Re: C30 GMC Dually I plan on 5" the other way. Posted via Mobile Device

05-28-2015, 07:33 PM	#47
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually Nothing wrong with that as long as it's not stock lol!

05-29-2015, 08:47 AM	#48
Ghostwhite Squarebody guy Join Date: Apr 2009 Location: Minnesota Posts: 335	Re: C30 GMC Dually That bagged flat/service bed truck is very nice! Only other truck I've seen like that is this one on duallyscene __________________ 1988 Chevy R30 Dually Crew-Cab - Build thread Cummins swap + Bagged and Bodied on Semi wheels, work in progress

05-29-2015, 12:53 PM	#49
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: C30 GMC Dually Looks good ghost..I had seen pics of that one before and if I had gotten a dually truck instead of a 1 ton I was gonna style my bed sides similar to that.. but not dragging the ground...I use my to pull heavy trailers to much..but it looks good.

05-29-2015, 02:36 PM	#50
GODFATHER Kansass Fire Starter! Join Date: Mar 2007 Location: Kansass Posts: 88	Re: C30 GMC Dually If ya build it right it can still pull just as much.

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