napco on ebay - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**mongocanfly** · 02-14-2016, 12:47 AM

http://www.ebay.com/itm/Chevrolet-36...m=172099733847

**joedoh** · 02-14-2016, 02:02 AM

swivel frame? are you kidding me thats awesome.

_Ogre · 02-14-2016, 01:09 PM

it may have had the swivel frame mod done, you can see the swivel in this pic
it obviously didn't work too well, you can see someone cobbled some c-channel over the swivel joint
terrible welding on the body mounts
never saw this mod before, good idea in someone's thought process though

OrrieG · 02-14-2016, 05:27 PM

Odd, I have never seen a NAPCO conversion that required a mod to that cross member.

mphudak · 02-14-2016, 07:32 PM

the swivel frame was more common on Dodge Power Wagons. Extremely rare option outside of Dodge and this is the 2nd chevy i have seen done.

I know Willock did some in Canada, not sure if anyone else did. http://bringatrailer.com/2011/11/09/...e-power-wagon/

Modified home brew

In theory it was a great concept, but limited the articulation to one plane. Lots of stress on that swivel

**joedoh** · 02-14-2016, 11:33 PM

that thrust bushing is a whole lot stronger than someone might think. there is a big tanker in the factory brochure in that link! the only big force is a bending moment, and tube doesnt bend very easily from what I remember of my statics.

its the same reason that perfectly reasonable people will build brackets from 1/4" plate or overkill their frame grafts not realizing the extra stiffness just pushes the forces to the weakest point down the line.

**mongocanfly** · 02-15-2016, 01:38 AM

That yellow truck is in the peterson museum..couple of videos on u-tube of them in action..google says only 49 were built and only 14 known to still exist..they may be referring to the power wagon..couldn't find anything on a napco with a willock.

OrrieG · 02-15-2016, 04:23 PM

Wow, never knew it existed, early version of the military Gamma Goat?

_Ogre · 02-16-2016, 02:42 PM

gama goat? yeah baby

bigrigpardo · 02-16-2016, 11:53 PM

Quote:

Originally Posted by _Ogre

gama goat? yeah baby

there is a gama goat sitting in a guys yard near me. he has a couple of trailers for it too. it has just sat there for the last 6 years at least that I have been here.

1project2many · 02-17-2016, 01:25 AM

Now we're moving OT, but I did a "Reverse image search" with that frame section pictured above and found a bunch of cool photos, including the M715 project it was built for. I'd love to talk with the person who put that joint into the NAPCO truck. And I'd love to talk with the guy who decided it wasn't such a good idea, too.

**mongocanfly** · 02-17-2016, 01:41 AM

Great find one2many...that jeep build is current..shouldn't be hard to pick his brain..

02-14-2016, 12:47 AM	#1
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	napco on ebay http://www.ebay.com/itm/Chevrolet-36...m=172099733847

02-14-2016, 02:02 AM	#2
joedoh Senior Member Join Date: May 2007 Location: Doodah Kansas Posts: 7,774	Re: napco on ebay swivel frame? are you kidding me thats awesome. __________________ the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393

02-14-2016, 01:09 PM	#3
_Ogre Registered User Join Date: Jan 2012 Location: Motown Posts: 7,680	Re: napco on ebay it may have had the swivel frame mod done, you can see the swivel in this pic it obviously didn't work too well, you can see someone cobbled some c-channel over the swivel joint terrible welding on the body mounts never saw this mod before, good idea in someone's thought process though __________________ cool, an ogre smiley Ogre's 58 Truk build how to put your truck year and build thread into your signature shop air compressor timer

02-14-2016, 05:27 PM	#4
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: napco on ebay Odd, I have never seen a NAPCO conversion that required a mod to that cross member. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

02-14-2016, 07:32 PM	#5
mphudak Registered User Join Date: Jan 2011 Location: Canton, GA Posts: 196	Re: napco on ebay the swivel frame was more common on Dodge Power Wagons. Extremely rare option outside of Dodge and this is the 2nd chevy i have seen done. I know Willock did some in Canada, not sure if anyone else did. http://bringatrailer.com/2011/11/09/...e-power-wagon/ Modified home brew In theory it was a great concept, but limited the articulation to one plane. Lots of stress on that swivel __________________ 55.1 GMC Suburban Hydramatic Last edited by mphudak; 02-14-2016 at 07:45 PM.

02-14-2016, 11:33 PM	#6
joedoh Senior Member Join Date: May 2007 Location: Doodah Kansas Posts: 7,774	Re: napco on ebay that thrust bushing is a whole lot stronger than someone might think. there is a big tanker in the factory brochure in that link! the only big force is a bending moment, and tube doesnt bend very easily from what I remember of my statics. its the same reason that perfectly reasonable people will build brackets from 1/4" plate or overkill their frame grafts not realizing the extra stiffness just pushes the forces to the weakest point down the line. __________________ the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393

02-15-2016, 01:38 AM	#7
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: napco on ebay That yellow truck is in the peterson museum..couple of videos on u-tube of them in action..google says only 49 were built and only 14 known to still exist..they may be referring to the power wagon..couldn't find anything on a napco with a willock.

02-15-2016, 04:23 PM	#8
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: napco on ebay Wow, never knew it existed, early version of the military Gamma Goat? __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

02-16-2016, 02:42 PM	#9
_Ogre Registered User Join Date: Jan 2012 Location: Motown Posts: 7,680	Re: napco on ebay gama goat? yeah baby __________________ cool, an ogre smiley Ogre's 58 Truk build how to put your truck year and build thread into your signature shop air compressor timer

02-17-2016, 01:25 AM	#11
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,200	Re: napco on ebay Now we're moving OT, but I did a "Reverse image search" with that frame section pictured above and found a bunch of cool photos, including the M715 project it was built for. I'd love to talk with the person who put that joint into the NAPCO truck. And I'd love to talk with the guy who decided it wasn't such a good idea, too.

02-17-2016, 01:41 AM	#12
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: napco on ebay Great find one2many...that jeep build is current..shouldn't be hard to pick his brain..

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