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Old 05-17-2004, 09:56 PM   #1
crazy4chevs
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Need vin decode Help

CM159oDZC2605A It doesn't make any sense to me!

GMC maybe?
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Old 05-17-2004, 10:24 PM   #2
Longhorn Man
its all about the +6 inches
 
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That is a GMC... they differ from some years to others, and I can not decode that one.
All I can make of it;
C = 2 wheel drive.
M = V-6 gasoline engine.
15 + 1/2 ton if not mistaken.
The rest is greek to me.
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Old 05-18-2004, 12:04 AM   #3
Rod
 
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CM159oDZC2605A

C= Conventional
M = V6
1 = 1/2 ton
59 = cab to rear axle dimension
0D = wide side (fleet side Box)
Z = Fremont assembly plant
C = 1969

rest of it is just sequence number

GMCPauls has a good gmc vin decoder page
http://gmcpauls.com/67-72_gmc.htm

There are some that are odd.. but I usually know those ones as well...A lot depended on where it was built.. some built in Canada have some difference on how to decode them for 1970 and 1971 GMC's.

Even this kind are tricky too because Chev and GMC used different numbers to tell cab to axle length... GMC used the number 59 while if it were a Chev the numbers instead of 59 would be 09. And to top it off... 59 or 09 actually mean a lenght of 54 inches...strange eh?
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Old 05-18-2004, 12:07 AM   #4
crazy4chevs
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thanks for the quick replies guys. u r awsome.
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Old 05-18-2004, 12:10 AM   #5
Longhorn Man
its all about the +6 inches
 
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I'm still trying to figure the different types of GMC codes...this is a pic from my 69 GMC manual.
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Old 05-18-2004, 12:12 AM   #6
Longhorn Man
its all about the +6 inches
 
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Never mind...I see it now. Mybe I need to get some sleep.
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Old 05-18-2004, 12:19 AM   #7
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Thats just one of the ways GMC did it Longhorn Man. If you look at the year identifier letter... A means 1967.. B would mean 1968 .. and C would mean 1969.

More typical is just one number for the GVW range... your shows a 20 for the 3/4 status ..but more than not you see just a 2 for a 3/4 ton.

If you get books on how ealier vins were decoded in the 60's you'll see even more ways of decoding.

I had scanned and posted a couple ways of doing it at one time.. but not sure I even bookmarked it on the boards.
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