Vin on frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hondizzle · 10-11-2012, 07:49 PM

I was told that the vin number wasn't stamped on the frame rail pre 1971 on 2wd and 4wd is this true? I'm looking at a 1970 and the body's vin is a 4wd I'm just curious to know if the frame had a vin stamped on it to see if its a real 2wd frame or a conversion. Thanks for the help
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BobbyK · 10-11-2012, 10:33 PM

Mine is easy to see on both side of the frame, about even with the door.
I've heard, but have not looked, that the VIN is stamped somewhere around the steering sector as well.

Wasted Income · 10-12-2012, 10:43 AM

I will take a peek this weekend on my trucks. My 72 has it stamped in two spots. I will try to see if it's also stamped in the same spots on my 70 frame.

hondizzle · 10-12-2012, 07:26 PM

Ok cool thanks guys
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rsavage · 10-12-2012, 09:04 PM

I have a 70 shortbed 4X4 and the partial VIN is stamped on the frame. It was there also on the 70 Burb I recently sold and it is on my 71 Blazer 4WD.
The entire VIN is not stamped on the frame just the last several digits of the VIN. Usually found on the top of the driver's side frame between the steering box area and firewall. This isn't going to tell you whether the Blazer was a factory 2 wheel drive. Your VIN will start with a C if it was a 2wd and a K if it was a 4wd. For example, KE181sXXXXXX would be a 4wd V8 Blazer (the 2nd letter "E" a V8, the 4th number"8" denates a Blazer). The XXXXXX would be found stamped on the frame. If it began with a CE it would have been a 2wd V8. CS would be a 2wd 6 cylinder. I have only personally seen a couple 2wd Blazers. The couple that I have seen were originally factory 6 cylinder vehicles by their VIN (CS). If the partial VIN on the frame matches your VIN tag then it would have originally been a 4WD.

PHAT TONY · 10-13-2012, 01:31 AM

2wd frames are different from 4wd frames; wider on 2wd ahead of the diff for coil springs (4wd are leaf springs).

blazin71K5 · 10-18-2012, 03:44 PM

I have my 71 2wd stripped down to the bare frame and can't find a vin anywhere on the frame even in the usual places was wondering the same thing.

**29od1** · 10-18-2012, 04:38 PM

Quote:

Originally Posted by blazin71K5

I have my 71 2wd stripped down to the bare frame and can't find a vin anywhere on the frame even in the usual places was wondering the same thing.

I would say if the partial VIN's are not there, then someone ground them off. Every frame that came off the assembly line should have had 2 partial VINs stamped on the LH side top of the frame. One was by the steering box and the other was located basically under the drivers seat.

There are a few documented cases where the partial frame VIN and the VIN plate on the body didn't always match from the factory because the body and frame got out of sequence on the line. But they were usually only off by one digit.

DustinU · 10-20-2012, 06:28 PM

As mentioned above, my 69 has the partial vin stamped on the frame by the steering box.

blazin71K5 · 10-20-2012, 08:19 PM

Finally found it between tranny crossmember and trailing arm cross member buried under what looks like factory undercoating that is all over the bottom of the tub and it was correct.
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10-11-2012, 07:49 PM	#1
hondizzle Registered User Join Date: Oct 2006 Location: Arizona Posts: 9	Vin on frame I was told that the vin number wasn't stamped on the frame rail pre 1971 on 2wd and 4wd is this true? I'm looking at a 1970 and the body's vin is a 4wd I'm just curious to know if the frame had a vin stamped on it to see if its a real 2wd frame or a conversion. Thanks for the help Posted via Mobile Device

10-11-2012, 10:33 PM	#2
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	Re: Vin on frame Mine is easy to see on both side of the frame, about even with the door. I've heard, but have not looked, that the VIN is stamped somewhere around the steering sector as well. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

10-12-2012, 10:43 AM	#3
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: Vin on frame I will take a peek this weekend on my trucks. My 72 has it stamped in two spots. I will try to see if it's also stamped in the same spots on my 70 frame. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2016 Ford Explorer Sport - Twin Turbskis 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

10-12-2012, 07:26 PM	#4
hondizzle Registered User Join Date: Oct 2006 Location: Arizona Posts: 9	Re: Vin on frame Ok cool thanks guys Posted via Mobile Device

10-12-2012, 09:04 PM	#5
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: Vin on frame I have a 70 shortbed 4X4 and the partial VIN is stamped on the frame. It was there also on the 70 Burb I recently sold and it is on my 71 Blazer 4WD. The entire VIN is not stamped on the frame just the last several digits of the VIN. Usually found on the top of the driver's side frame between the steering box area and firewall. This isn't going to tell you whether the Blazer was a factory 2 wheel drive. Your VIN will start with a C if it was a 2wd and a K if it was a 4wd. For example, KE181sXXXXXX would be a 4wd V8 Blazer (the 2nd letter "E" a V8, the 4th number"8" denates a Blazer). The XXXXXX would be found stamped on the frame. If it began with a CE it would have been a 2wd V8. CS would be a 2wd 6 cylinder. I have only personally seen a couple 2wd Blazers. The couple that I have seen were originally factory 6 cylinder vehicles by their VIN (CS). If the partial VIN on the frame matches your VIN tag then it would have originally been a 4WD. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 Last edited by rsavage; 10-12-2012 at 09:15 PM.

10-13-2012, 01:31 AM	#6
PHAT TONY Registered User Join Date: Aug 2008 Location: Red Deer ab canada Posts: 1,250	Re: Vin on frame 2wd frames are different from 4wd frames; wider on 2wd ahead of the diff for coil springs (4wd are leaf springs). __________________ 1972 factory 2 Wheel Drive Blazer-Sold 1972 K10 4X4-Sold 1971 Chevrolet Cheyenne/10-Sold 1970 Chevrolet C/10-Sold 1968 GMC 4X4-Project 1968 Chevrolet C/10 Pro Street 1970 GMC 3/4 Ton-Parts 1997 2WD 2DR Yukon-Sweet http://67-72chevytrucks.com/vboard/s...d.php?t=335664

10-18-2012, 03:44 PM	#7
blazin71K5 Registered User Join Date: Aug 2009 Location: Cash,TX Posts: 285	Re: Vin on frame I have my 71 2wd stripped down to the bare frame and can't find a vin anywhere on the frame even in the usual places was wondering the same thing. __________________ 71 2wd k5 67 Nova

10-20-2012, 06:28 PM	#9
DustinU Registered User Join Date: Feb 2012 Location: Orange, CA Posts: 300	Re: Vin on frame As mentioned above, my 69 has the partial vin stamped on the frame by the steering box.

10-20-2012, 08:19 PM	#10
blazin71K5 Registered User Join Date: Aug 2009 Location: Cash,TX Posts: 285	Re: Vin on frame Finally found it between tranny crossmember and trailing arm cross member buried under what looks like factory undercoating that is all over the bottom of the tub and it was correct. Posted via Mobile Device __________________ 71 2wd k5 67 Nova

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