NAPCO trucks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

75-K5 · 11-17-2004, 04:52 AM

I'd like to see some more NAPCO 4x4 trucks from the 55-66 era. I looked at a few on napco4x4.org and I think I have the bug. I'm half tempted to sell everything and get one of these babies!

Here are two of my favorites from napco4x4.org:

**JIMs70GMC** · 11-17-2004, 07:29 AM

http://67-72chevytrucks.com/vboard/s...d.php3?t=70721
http://67-72chevytrucks.com/vboard/s...d.php3?t=31945

Look through these.

Hutch · 11-17-2004, 06:25 PM

75-K5
I have a bunch:

75-K5 · 11-19-2004, 12:32 AM

This one made me feel things I've never felt before:

Green Machine · 11-25-2004, 05:13 PM

Ok, don't laugh, but what does NAPCO mean?

Prerunner1982 · 11-25-2004, 08:19 PM

probably not a napco truck, but still a 65 4x4. (283 (out of 58 vette) and SM420)

Hutch · 11-26-2004, 12:19 AM

Green Machine
Northwestern Auto Parts COmpany
Check this site for the full story:
http://www.napco4x4.org

*60apache4* · 01-03-2005, 02:18 AM

Here's my stash of NAPCO photos; enjoy:

http://www.ccountry.net/~tmobrien/trucks/napco/

**JIMs70GMC** · 01-03-2005, 07:17 AM

Something I noticed about those NAPCOs: the shackle is in the front.

**special-K** · 01-10-2005, 08:49 AM

60apache4,I just checked-out the`71 Napco,cool!I had a`71 single wheel.Can someone post pics?Not digital.

Rollie396 · 01-10-2005, 08:29 PM

Quote:

Originally Posted by Hutch

Green Machine
Northwestern Auto Parts COmpany
Check this site for the full story:
http://www.napco4x4.org

good read Hutch thanks for the link!

687980chevy · 01-27-2005, 02:57 AM

A freind sent me this a 1962 GMC 5000 6x6 napco it has a hendrickson tandem,V6 gas? I've never seen anything like it, pretty cool

http://community.webshots.com/album/227086175ErVbWi

'71c204x4454 · 01-29-2005, 09:33 PM

Here is one I went to look at today.

**JIMs70GMC** · 01-29-2005, 09:57 PM

ON ebay know:

benscool1 · 01-30-2005, 03:38 AM

that Napco GMC tandem was awesome!

Hutch · 01-30-2005, 10:48 PM

That 6x6 is a museum piece

687980chevy · 01-31-2005, 03:17 AM

A friend sent me the link,don't know anything about the 6x6 but I'm gonna guess it might have been a firetruck. I wish it said more about the drivetrain. Thanks for posting a picture Hutch. It is one of the coolest big trucks I've ever seen!

BobS · 01-31-2005, 03:40 AM

The 6X6 is mine, it was originally used by a power company and had a Highway digger mounted on it to place electrical poles. They needed the front drive axle when running power lines cross country or through rough or swampy terrain. The drivetrain is a 351 V-6, NP-540 5-speed transmission, Rockwell transfer case, Rockwell tandem rear axles and a NAPCO front axle. Gearing in the axles is 7.20. Glad you like it!

Bob

687980chevy · 01-31-2005, 04:18 AM

BobS: Thanks for the info, like I said cool truck. I've drove a few of those V6 GMC's, alot of torque but boy do they like gas!
Thanks again

67_C-30 · 02-01-2005, 12:29 AM

I ran across this '65 3/4 ton 4X4 GMC today. It has Dana 60 front and rear axles, but it looks like some of the Napco conversions. It has the divorced transfer case. If you look at the pic of the front axle, you can see that the U bolts go around part of the diffential housing. It doesn't look factory. I think the axles have been changed. The front axles do not have lock in / lock out hubs. It has the big 305E V6 with the 4 speed tranny. It runs great, and the only thing that it needs is to have the U joints replaced. I can get it for $500, which I'm pretty sure is great price just even if just for the parts. Can anyone tell if it is a Napco truck? Thanks,

BobS · 02-01-2005, 01:00 AM

It's not a NAPCO but I'd pay $500 for it. The front axle looks like a closed knuckle Dana 44 but it's kinda hard to see in the shadows. U-bolts around that part of the center section is the way the factory mounted them. Divorced transfer case was also factory in all years prior to 67. It may very well be something that someone put together but if it runs it's well worth the $500. Got anymore pics? Looks like a nice truck!

More info on the V-6 and 60-66 GMCs here

Bob

Hutch · 02-01-2005, 08:59 PM

67_C-30
This is a pic of a napco axle

BobS · 02-01-2005, 11:48 PM

Big NAPCO axle

Bob

BobS · 02-03-2005, 10:14 AM

More on NAPCOs

http://www.napco4x4.org/

Bob

67_C-30 · 02-06-2005, 12:52 AM

Bob,

I don't have anymore pics of it right now. I am still considering buying it, but I really don't need another project right now. I would really like to have it because I like those old V6's. They are a great conversation piece, because most people know little or nothing about them. I recently sold a '68 GMC 6500 dump truck with a 478 V6 in it. That thing would really lug!! It wasn't the fastest truck in town, but with the 2 speed rear in Low and in 1st gear it felt like it would pull the earth off its axis!! I kinda miss the ol' truck, but the gas mileage, not so much

11-17-2004, 04:52 AM	#1
75-K5 Bucket of Bolts Join Date: Dec 2003 Location: Anderson, Indiana Posts: 455	NAPCO trucks I'd like to see some more NAPCO 4x4 trucks from the 55-66 era. I looked at a few on napco4x4.org and I think I have the bug. I'm half tempted to sell everything and get one of these babies! Here are two of my favorites from napco4x4.org: __________________ This is the project that never ends, yes it goes on and on my friend....

11-17-2004, 07:29 AM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	http://67-72chevytrucks.com/vboard/s...d.php3?t=70721 http://67-72chevytrucks.com/vboard/s...d.php3?t=31945 Look through these. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

11-17-2004, 06:25 PM	#3
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	75-K5 I have a bunch: Attached Images __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

11-19-2004, 12:32 AM	#4
75-K5 Bucket of Bolts Join Date: Dec 2003 Location: Anderson, Indiana Posts: 455	This one made me feel things I've never felt before: __________________ This is the project that never ends, yes it goes on and on my friend....

11-25-2004, 08:19 PM	#6
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	probably not a napco truck, but still a 65 4x4. (283 (out of 58 vette) and SM420) Attached Images __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

11-25-2004, 05:13 PM	#5
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Ok, don't laugh, but what does NAPCO mean?

11-26-2004, 12:19 AM	#7
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	Green Machine Northwestern Auto Parts COmpany Check this site for the full story: http://www.napco4x4.org __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

01-03-2005, 02:18 AM	#8
60apache4 Account Suspended Join Date: Nov 2001 Location: Oregon Posts: 147	Here's my stash of NAPCO photos; enjoy: http://www.ccountry.net/~tmobrien/trucks/napco/

01-03-2005, 07:17 AM	#9
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Something I noticed about those NAPCOs: the shackle is in the front. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

01-10-2005, 08:49 AM	#10
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	60apache4,I just checked-out the`71 Napco,cool!I had a`71 single wheel.Can someone post pics?Not digital. __________________ "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 ~

01-27-2005, 02:57 AM	#12
687980chevy Registered User Join Date: Feb 2004 Location: Hilly Southern Indiana! Posts: 201	6x6 Napco one of a kind???? A freind sent me this a 1962 GMC 5000 6x6 napco it has a hendrickson tandem,V6 gas? I've never seen anything like it, pretty cool http://community.webshots.com/album/227086175ErVbWi __________________ 68 K-10,79 K-10,80 C-30 57 chevy convertible 79 Z28

01-29-2005, 09:33 PM	#13
'71c204x4454 '71k204x4454 Join Date: Jan 2004 Location: Hood River Or. Posts: 137	Here is one I went to look at today. __________________ 1971 K20 4x4 1964 buick skylark convertible

01-29-2005, 09:57 PM	#14
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	ON ebay know: Attached Images __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

01-30-2005, 03:38 AM	#15
benscool1 Registered User Join Date: Mar 2003 Location: Williamsfield, IL Posts: 781	that Napco GMC tandem was awesome! __________________ Ben 84 C10 Silverado 14 Silverado Z71

01-30-2005, 10:48 PM	#16
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	That 6x6 is a museum piece Attached Images __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS



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01-31-2005, 03:17 AM	#17
687980chevy Registered User Join Date: Feb 2004 Location: Hilly Southern Indiana! Posts: 201	Napco 6x6 A friend sent me the link,don't know anything about the 6x6 but I'm gonna guess it might have been a firetruck. I wish it said more about the drivetrain. Thanks for posting a picture Hutch. It is one of the coolest big trucks I've ever seen! __________________ 68 K-10,79 K-10,80 C-30 57 chevy convertible 79 Z28

01-31-2005, 03:40 AM	#18
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	The 6X6 is mine, it was originally used by a power company and had a Highway digger mounted on it to place electrical poles. They needed the front drive axle when running power lines cross country or through rough or swampy terrain. The drivetrain is a 351 V-6, NP-540 5-speed transmission, Rockwell transfer case, Rockwell tandem rear axles and a NAPCO front axle. Gearing in the axles is 7.20. Glad you like it! Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

01-31-2005, 04:18 AM	#19
687980chevy Registered User Join Date: Feb 2004 Location: Hilly Southern Indiana! Posts: 201	BobS: Thanks for the info, like I said cool truck. I've drove a few of those V6 GMC's, alot of torque but boy do they like gas! Thanks again __________________ 68 K-10,79 K-10,80 C-30 57 chevy convertible 79 Z28

02-01-2005, 12:29 AM	#20
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Napco or not??? I ran across this '65 3/4 ton 4X4 GMC today. It has Dana 60 front and rear axles, but it looks like some of the Napco conversions. It has the divorced transfer case. If you look at the pic of the front axle, you can see that the U bolts go around part of the diffential housing. It doesn't look factory. I think the axles have been changed. The front axles do not have lock in / lock out hubs. It has the big 305E V6 with the 4 speed tranny. It runs great, and the only thing that it needs is to have the U joints replaced. I can get it for $500, which I'm pretty sure is great price just even if just for the parts. Can anyone tell if it is a Napco truck? Thanks, __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

02-01-2005, 01:00 AM	#21
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	It's not a NAPCO but I'd pay $500 for it. The front axle looks like a closed knuckle Dana 44 but it's kinda hard to see in the shadows. U-bolts around that part of the center section is the way the factory mounted them. Divorced transfer case was also factory in all years prior to 67. It may very well be something that someone put together but if it runs it's well worth the $500. Got anymore pics? Looks like a nice truck! More info on the V-6 and 60-66 GMCs here Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

02-01-2005, 08:59 PM	#22
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	67_C-30 This is a pic of a napco axle Attached Images __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

02-01-2005, 11:48 PM	#23
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	Big NAPCO axle Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel Last edited by BobS; 03-11-2005 at 11:48 PM.

02-03-2005, 10:14 AM	#24
BobS Senior Member Join Date: May 2001 Location: West Central Minnesota Posts: 568	More on NAPCOs http://www.napco4x4.org/ Bob __________________ V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel

02-06-2005, 12:52 AM	#25
67_C-30 I have a radical idea! Join Date: Jan 2005 Location: Sweet Home Alabama! Posts: 6,513	Bob, I don't have anymore pics of it right now. I am still considering buying it, but I really don't need another project right now. I would really like to have it because I like those old V6's. They are a great conversation piece, because most people know little or nothing about them. I recently sold a '68 GMC 6500 dump truck with a 478 V6 in it. That thing would really lug!! It wasn't the fastest truck in town, but with the 2 speed rear in Low and in 1st gear it felt like it would pull the earth off its axis!! I kinda miss the ol' truck, but the gas mileage, not so much __________________ '67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club!

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