What year is this GMC? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

alabama1949chevy · 03-27-2013, 03:09 PM

I found a rolling chassis that has engine and transmission included...the engine casting on it is: 6107326 GMC 6.

I understand that it's between a 39-52 GMC but how do i determine what year it actually is? Is there any other numbers on the motor that will tell me?

Thanks a lot...in advance!

A

alabama1949chevy · 03-28-2013, 01:59 PM

I guess some pics would/might help...I hope some of you guru's can help me out!

OrrieG · 03-28-2013, 05:39 PM

The date code translates to L291 is December 29 19x1 casting date. So it could be 41 or 51. The guys over at oldgmctrucks.com can help you narrow it down.

**mr48chev** · 03-28-2013, 06:59 PM

You have a photo of the frame it's self. There are distinctive differences between the early 47 and earlier trucks and the AD trucks.

mknittle · 03-29-2013, 11:44 AM

It is also possible that engine is not the original. It doesn't hurt to know what year the engine is but It isn’t a good way to find what year the frame is!

alabama1949chevy · 03-29-2013, 09:13 PM

I bought the chassis today...did some measuring and it appears that I made a great purchase! Looks like my project will get started sooner than I thought! Pretty stoked about it!
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Russell Ashley · 03-30-2013, 08:13 AM

You might try wire brushing the top of the frame rail near the steering box to see if you can find the serial number there. That would tell you exactly what you have.

sweet70beast · 03-30-2013, 11:55 AM

It looks like it has tube shocks and they were first used in 1950. 1949 and earlier had what they called knee action shocks and they operate and look very different. So with the casting date on the motor I would say 1951.

alabama1949chevy · 04-02-2013, 10:19 AM

Quote:

Originally Posted by Russell Ashley

You might try wire brushing the top of the frame rail near the steering box to see if you can find the serial number there. That would tell you exactly what you have.

I tried to wire brush in that exact spot and nothing turned up...is there anywhere else on the frame that has a serial number?
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sweet70beast · 04-02-2013, 11:20 PM

If you would post a picture of the last crossmember. The one behind the rear wheels, they changed them between 50 and 53.

Russell Ashley · 04-03-2013, 07:52 AM

Quote:

Originally Posted by alabama1949chevy

I tried to wire brush in that exact spot and nothing turned up...is there anywhere else on the frame that has a serial number?
Posted via Mobile Device

I have read here on the forum that the number could be farther back under the cab floor. Mine was not stamped deep, and barely readable, so you might have to look really close.

alabama1949chevy · 04-03-2013, 09:01 AM

Quote:

Originally Posted by Russell Ashley

I have read here on the forum that the number could be farther back under the cab floor. Mine was not stamped deep, and barely readable, so you might have to look really close.

I guess I'll just have to go off all my measurements that tell me that my "body" will work with the chassis, since the chassis doesn't have a cab floor...or is the number on the frame where the cab floor would attach?

Russell Ashley · 04-03-2013, 12:28 PM

Quote:

Originally Posted by alabama1949chevy

I guess I'll just have to go off all my measurements that tell me that my "body" will work with the chassis, since the chassis doesn't have a cab floor...or is the number on the frame where the cab floor would attach?

I meant on the frame under where the cab floor would normally be, LOL.

alabama1949chevy · 04-03-2013, 02:17 PM

Quote:

Originally Posted by Russell Ashley

I meant on the frame under where the cab floor would normally be, LOL.

THANKS!!! i'll have to check that out this evening when I get home from work!

03-27-2013, 03:09 PM	#1
alabama1949chevy Registered User Join Date: Feb 2013 Location: North Alabama Posts: 51	What year is this GMC? I found a rolling chassis that has engine and transmission included...the engine casting on it is: 6107326 GMC 6. I understand that it's between a 39-52 GMC but how do i determine what year it actually is? Is there any other numbers on the motor that will tell me? Thanks a lot...in advance! A

03-28-2013, 01:59 PM	#2
alabama1949chevy Registered User Join Date: Feb 2013 Location: North Alabama Posts: 51	Re: What year is this GMC? I guess some pics would/might help...I hope some of you guru's can help me out! Attached Images

03-28-2013, 05:39 PM	#3
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: What year is this GMC? The date code translates to L291 is December 29 19x1 casting date. So it could be 41 or 51. The guys over at oldgmctrucks.com can help you narrow it down. __________________ 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

03-28-2013, 06:59 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,718	Re: What year is this GMC? You have a photo of the frame it's self. There are distinctive differences between the early 47 and earlier trucks and the AD trucks. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

03-29-2013, 11:44 AM	#5
mknittle Registered User Join Date: Jul 2011 Location: Auburn ca. Posts: 2,886	Re: What year is this GMC? It is also possible that engine is not the original. It doesn't hurt to know what year the engine is but It isn’t a good way to find what year the frame is! __________________ Mark My GMC build. http://67-72chevytrucks.com/vboard/s...d.php?t=536602

03-29-2013, 09:13 PM	#6
alabama1949chevy Registered User Join Date: Feb 2013 Location: North Alabama Posts: 51	Re: What year is this GMC? I bought the chassis today...did some measuring and it appears that I made a great purchase! Looks like my project will get started sooner than I thought! Pretty stoked about it! Posted via Mobile Device Posted via Mobile Device Attached Images

03-30-2013, 08:13 AM	#7
Russell Ashley Registered User Join Date: May 2010 Location: Lawrenceville, Ga Posts: 2,648	Re: What year is this GMC? You might try wire brushing the top of the frame rail near the steering box to see if you can find the serial number there. That would tell you exactly what you have.

03-30-2013, 11:55 AM	#8
sweet70beast Registered User Join Date: Sep 2006 Location: Shelley Idaho Posts: 876	Re: What year is this GMC? It looks like it has tube shocks and they were first used in 1950. 1949 and earlier had what they called knee action shocks and they operate and look very different. So with the casting date on the motor I would say 1951. __________________ 1970 Nova 327/T5 (my 1st car) 1971 K-20 350/350/205 (winter DD) 1953 GMC Suburban 1968 Chevy Bel Air 1976 Chev C-10 1972 Skylark (suncoupe) 1 of 3943 made

04-02-2013, 11:20 PM	#10
sweet70beast Registered User Join Date: Sep 2006 Location: Shelley Idaho Posts: 876	Re: What year is this GMC? If you would post a picture of the last crossmember. The one behind the rear wheels, they changed them between 50 and 53. __________________ 1970 Nova 327/T5 (my 1st car) 1971 K-20 350/350/205 (winter DD) 1953 GMC Suburban 1968 Chevy Bel Air 1976 Chev C-10 1972 Skylark (suncoupe) 1 of 3943 made



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