C-20 4x4? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevynuts · 11-09-2010, 10:22 PM

I've been browsing different auto search websites and I've found multiple C-10's and C-20's that are 4x4. Are all of these trucks conversions? It seems fairly common. Can anyone explain this? Thanks.

CG · 11-09-2010, 10:40 PM

Im not sure what you mean. They made half ton and 3/4 ton 4x4's. But I believe only the 4x4 Blazers were badged with a K (for 4x4)...Is that what you are talking about?

Chevynuts · 11-09-2010, 10:55 PM

Oh yeah, I was referring to the trucks - sorry for not specifying. Well, I thought that VIN numbers beginning with a 'C' meant 2 wheel drive, while VIN numbers starting with a 'K' meant 4 wheel drive?

swamp rat · 11-09-2010, 10:58 PM

Quote:

Originally Posted by Chevynuts

Oh yeah, I was referring to the trucks - sorry for not specifying. Well, I thought that VIN numbers beginning with a 'C' meant 2 wheel drive, while VIN numbers starting with a 'K' meant 4 wheel drive?

Nope, My 3/4T 4X4 vin starts with a C.

CG · 11-09-2010, 10:58 PM

Oh Ok, you were talking about Vin numbers, There are quite a few that have been converted here on the board. Check out the 4x4 area. Im always surprised when I see this because real 4x4's are a dime a dozen out here.

Ive never looked at the vins on mine. Looks like swamps starts with a c. Smarter guys than me are already chiming in LOL.

Chevynuts · 11-09-2010, 11:07 PM

CG, Swamp - thanks for the replies. Yeah, I purchased a C-20 that's a 4x4 and didn't do my homework until AFTER. So, when I looked up the VIN number it says that it was a 2x4 from the factory hence the 'C.' Swamp, is your truck stock?

CG · 11-09-2010, 11:10 PM

Grabbed a flashlight and checked out the Vin on my 71 K20. It does start with a K.

Chevynuts · 11-09-2010, 11:16 PM

I'm concerned cuz if its a conversion, was it done properly, ya know? Hope I didn't get in too far over my head, which to be honest, wouldn't take much. I've always wanted a classic truck and now I finally have one. I'm a rookie at turnin' wrenches- savvy, but a rookie. Ruh-roh!

**71blksuper4x4** · 11-10-2010, 12:09 AM

Yes, all original 4x4 vin's start with a K if a chevy, and I believe it's TK if it's a GMC. Don't 100% quote me on the GMC as I haven't owned one, but I believe that's accurate. I do know all the Chevy's start with a K. Trevor

swamp rat · 11-10-2010, 12:51 AM

Quote:

Originally Posted by Chevynuts

CG, Swamp - thanks for the replies. Yeah, I purchased a C-20 that's a 4x4 and didn't do my homework until AFTER. So, when I looked up the VIN number it says that it was a 2x4 from the factory hence the 'C.' Swamp, is your truck stock?

As far as i know my truck is a factory 4X4, i looked up the vin about 16'ish years ago when i got it from my stepdad and it looked proper, He bought it when it was around a year old. I guess i should go out tomorrow and find the vin on the frame and compare it to the glove box and cab while i'm at it. Going by my Proof of insurance based on the title my vin starts with CKE242J.

Kinda glad i just looked because i neglected to print up current proof of insurance for all my rides...Woops!

EDIT: I just found this posting, it shows my truck as Conventional cab, 4X4, V8. Not sure where he came up with the info but it explains my having 2 letters C and K.
http://67-72chevytrucks.com/vboard/s...d.php?t=160357

**71blksuper4x4** · 11-10-2010, 01:10 AM

CK is correct for a 4x4.... notice the K after the C, a 2wd is CE atleast for Chevy. I think different for GMC. That's what I meant by starting with K, sorry for any confusion. Trevor

swamp rat · 11-10-2010, 01:24 AM

I just found this link it has a better explination.

http://67-72chevytrucks.com/vboard/s...d.php?t=377727

first digit is ether C Chevy or T GMC
Second digit K for 4X4.... and so on.

**too much stuff** · 11-10-2010, 01:25 AM

I believe if your truck is a 72, a chevy will have an extra "C" in front of the vin and a gmc will have the "T". So in 72, a CK would be a 4x4...
They were all badged as c-20, or custom 20, etc... Blazer was the only one that got the "K" badge.

swamp rat · 11-10-2010, 01:32 AM

Yea i have a custom-20. I found 3 different places that didn't even bother to list the C and T before i found the post above. ..

**special-K** · 11-10-2010, 07:48 AM

The Chevy "C" and the GMC "T" was added to VINs in '72.All '72 4wds will have a "K" as the second digit and 2wds will have a "C".Prior years will have those disignates as the first digit .

Chevynuts · 11-10-2010, 07:58 AM

Thanks for the clarification guys! Looks like I must have a conversion of some sort. As for all of the other 'C' 4x4's I've seen on the internet, I would guess most are authentic then or are their owners maybe making the c/k vin mistake too?

swamp rat · 11-10-2010, 02:33 PM

Quote:

Originally Posted by special-K

The Chevy "C" and the GMC "T" was added to VINs in '72.All '72 4wds will have a "K" as the second digit and 2wds will have a "C".Prior years will have those disignates as the first digit .

Thanks for adding that Special K, I couldn't figure out why some of the sites listed the vins differently, But i knew that way back when, when i checked mine that it was proper, just don't recall what source i used as it was before i had a computer.

72-c20 · 11-10-2010, 03:20 PM

Quote:

Originally Posted by too much stuff

I believe if your truck is a 72, a chevy will have an extra "C" in front of the vin and a gmc will have the "T". So in 72, a CK would be a 4x4...
They were all badged as c-20, or custom 20, etc... Blazer was the only one that got the "K" badge.

whic is why I ended up with my name... for Custom 20, even though it's a "K"

**WIDESIDE72** · 11-11-2010, 06:49 PM

Quote:

Originally Posted by 71blksuper4x4

Yes, all original 4x4 vin's start with a K if a chevy, and I believe it's TK if it's a GMC. Don't 100% quote me on the GMC as I haven't owned one, but I believe that's accurate. I do know all the Chevy's start with a K. Trevor

The 72 GMC 2500 Super Custom 4x4 I sold a while back started with "TK"

RPBurris · 11-12-2010, 11:30 AM

So i just looked up my VIN on my 69 4x4 3/4 ton. Starts CE249... Is there any other place the VIN would be listed on the frame to find out if the cab is not original to the truck? I know my truck was restored about 15 years ago so i guess its possible it could have been a cab swap or 4x4 conversion. Everything seems factory correct for the 4x4.

mrein3 · 11-12-2010, 01:41 PM

Quote:

Originally Posted by Chevynuts

I'm concerned cuz if its a conversion, was it done properly, ya know? Hope I didn't get in too far over my head, which to be honest, wouldn't take much. I've always wanted a classic truck and now I finally have one. I'm a rookie at turnin' wrenches- savvy, but a rookie. Ruh-roh!

I have a "C10" cab on a "K10" chassis. If you're worried about whether it was done right or not, buzz the truck up to 55 and get on the binders. If the cab doesn't fly off, it was done right. Just about all you have to do to do it right is bolt the C cab on the K chassis.

Quote:

Originally Posted by RPBurris

So i just looked up my VIN on my 69 4x4 3/4 ton. Starts CE249... Is there any other place the VIN would be listed on the frame to find out if the cab is not original to the truck? I know my truck was restored about 15 years ago so i guess its possible it could have been a cab swap or 4x4 conversion. Everything seems factory correct for the 4x4.

Yes there is a partial VIN stamped on the chassis. Look at the top of the LHS (driver's side) frame rail, under the hood about a foot back from the steering box. I can't remember what part of the VIN is there but I believe it is something like K or C, plant letter, and sequence number.

cam.man67 · 11-12-2010, 03:01 PM

Wait a sec...Chevynuts, I wouldn't write it off as a conversion just yet.

It was my understanding that Chevy didn't go to C and K nomenclature until '69 when the Blazer came out; every 4x4 1967 or 1968 was a C20 4x4 or a C10 4x4.

Am I right in that, or not?

11-09-2010, 10:22 PM	#1
Chevynuts Registered User Join Date: Oct 2010 Location: Pittsburgh, PA Posts: 5	C-20 4x4? I've been browsing different auto search websites and I've found multiple C-10's and C-20's that are 4x4. Are all of these trucks conversions? It seems fairly common. Can anyone explain this? Thanks.

11-09-2010, 10:40 PM	#2
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 19,847	Re: C-20 4x4? Im not sure what you mean. They made half ton and 3/4 ton 4x4's. But I believe only the 4x4 Blazers were badged with a K (for 4x4)...Is that what you are talking about? __________________ … … … … … … … … ... … … … … … … … … … … … Last edited by CG; 11-09-2010 at 10:40 PM.

11-09-2010, 10:55 PM	#3
Chevynuts Registered User Join Date: Oct 2010 Location: Pittsburgh, PA Posts: 5	Re: C-20 4x4? Oh yeah, I was referring to the trucks - sorry for not specifying. Well, I thought that VIN numbers beginning with a 'C' meant 2 wheel drive, while VIN numbers starting with a 'K' meant 4 wheel drive?

11-09-2010, 10:58 PM	#5
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 19,847	Re: C-20 4x4? Oh Ok, you were talking about Vin numbers, There are quite a few that have been converted here on the board. Check out the 4x4 area. Im always surprised when I see this because real 4x4's are a dime a dozen out here. Ive never looked at the vins on mine. Looks like swamps starts with a c. Smarter guys than me are already chiming in LOL. __________________ … … … … … … … … ... … … … … … … … … … … … Last edited by CG; 11-09-2010 at 10:59 PM.

11-09-2010, 11:07 PM	#6
Chevynuts Registered User Join Date: Oct 2010 Location: Pittsburgh, PA Posts: 5	Re: C-20 4x4? CG, Swamp - thanks for the replies. Yeah, I purchased a C-20 that's a 4x4 and didn't do my homework until AFTER. So, when I looked up the VIN number it says that it was a 2x4 from the factory hence the 'C.' Swamp, is your truck stock?

11-09-2010, 11:10 PM	#7
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 19,847	Re: C-20 4x4? Grabbed a flashlight and checked out the Vin on my 71 K20. It does start with a K. __________________ … … … … … … … … ... … … … … … … … … … … …

11-09-2010, 11:16 PM	#8
Chevynuts Registered User Join Date: Oct 2010 Location: Pittsburgh, PA Posts: 5	Re: C-20 4x4? I'm concerned cuz if its a conversion, was it done properly, ya know? Hope I didn't get in too far over my head, which to be honest, wouldn't take much. I've always wanted a classic truck and now I finally have one. I'm a rookie at turnin' wrenches- savvy, but a rookie. Ruh-roh!

11-10-2010, 12:09 AM	#9
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,151	Re: C-20 4x4? Yes, all original 4x4 vin's start with a K if a chevy, and I believe it's TK if it's a GMC. Don't 100% quote me on the GMC as I haven't owned one, but I believe that's accurate. I do know all the Chevy's start with a K. Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

11-10-2010, 01:10 AM	#11
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,151	Re: C-20 4x4? CK is correct for a 4x4.... notice the K after the C, a 2wd is CE atleast for Chevy. I think different for GMC. That's what I meant by starting with K, sorry for any confusion. Trevor __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

11-10-2010, 01:24 AM	#12
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: C-20 4x4? I just found this link it has a better explination. http://67-72chevytrucks.com/vboard/s...d.php?t=377727 first digit is ether C Chevy or T GMC Second digit K for 4X4.... and so on. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

11-10-2010, 01:25 AM	#13
too much stuff Roadtrip! Join Date: Feb 2003 Location: Grand Rapids MN Posts: 13,719	Re: C-20 4x4? I believe if your truck is a 72, a chevy will have an extra "C" in front of the vin and a gmc will have the "T". So in 72, a CK would be a 4x4... They were all badged as c-20, or custom 20, etc... Blazer was the only one that got the "K" badge. __________________ 67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto

11-10-2010, 01:32 AM	#14
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: C-20 4x4? Yea i have a custom-20. I found 3 different places that didn't even bother to list the C and T before i found the post above. .. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

11-10-2010, 07:48 AM	#15
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,859	Re: C-20 4x4? The Chevy "C" and the GMC "T" was added to VINs in '72.All '72 4wds will have a "K" as the second digit and 2wds will have a "C".Prior years will have those disignates as the first digit . __________________ "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 ~

11-10-2010, 07:58 AM	#16
Chevynuts Registered User Join Date: Oct 2010 Location: Pittsburgh, PA Posts: 5	Re: C-20 4x4? Thanks for the clarification guys! Looks like I must have a conversion of some sort. As for all of the other 'C' 4x4's I've seen on the internet, I would guess most are authentic then or are their owners maybe making the c/k vin mistake too?

11-12-2010, 11:30 AM	#20
RPBurris Registered User Join Date: Mar 2010 Location: Dyer, Indiana Posts: 395	Re: C-20 4x4? So i just looked up my VIN on my 69 4x4 3/4 ton. Starts CE249... Is there any other place the VIN would be listed on the frame to find out if the cab is not original to the truck? I know my truck was restored about 15 years ago so i guess its possible it could have been a cab swap or 4x4 conversion. Everything seems factory correct for the 4x4. __________________ 1969 Chevy K20 Longbed



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11-12-2010, 03:01 PM	#22
cam.man67 Registered User Join Date: Jun 2010 Location: Jefferson, MD Posts: 2,397	Re: C-20 4x4? Wait a sec...Chevynuts, I wouldn't write it off as a conversion just yet. It was my understanding that Chevy didn't go to C and K nomenclature until '69 when the Blazer came out; every 4x4 1967 or 1968 was a C20 4x4 or a C10 4x4. Am I right in that, or not? __________________ '68 Dodge Dart 270, 225, 904, 2.76--"Lucy" 1996 Gmc 1500 Z71, 350, 4l60e, 3.73s 1995 Jeep Wrangler Rio Grande 2.5, AX5, 4.10s 1989 Toyota Pickup 22re, auto, 3.73 Last edited by cam.man67; 11-12-2010 at 03:03 PM.

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