Serial # confusion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

7 Devils · 03-27-2018, 10:31 PM

So after trying to study the internet for information on my 55 370 2 ton, I've got more questions than I started with.
My serial number is 371 R Y2843 as found in the cab of the truck.
I'm assuming it's a 370 series, but booklets and this is also indicate it's a "6400". The ID plate shows 18,000 GVWR. It has a 270 I6, and a two speed dually rear end.

Anyone willing to help to help a newbie out on what this truck is? (Please).

Also, does anyone else have a schematic that covers frame dimensions for this truck that they'd be willing to share?

Thanks in advance

3/28/18

So after more time spent trying to hunt down the info, I am left with dimensional and model info from Chevy data of the same year. I really don't know if they directly cross over. They Chevy data suggests a 6403 Chassis but the GVWR #s are off and my door tag clearly says 18,000lb, not 19,500.

**buggy5872** · 03-29-2018, 07:43 AM

Look on this site. http://www.oldgmctrucks.com/page0009.html if you do not find the info email Rob and he will get it for you.

7 Devils · 03-29-2018, 10:38 AM

Quote:

Originally Posted by buggy5872

Look on this site. http://www.oldgmctrucks.com/page0009.html if you do not find the info email Rob and he will get it for you.

Thanks for the info. I'll give that a shot.

Dan

03-27-2018, 10:31 PM	#1
7 Devils Registered User Join Date: Mar 2018 Location: Kuna, Idaho Posts: 117	Serial # confusion So after trying to study the internet for information on my 55 370 2 ton, I've got more questions than I started with. My serial number is 371 R Y2843 as found in the cab of the truck. I'm assuming it's a 370 series, but booklets and this is also indicate it's a "6400". The ID plate shows 18,000 GVWR. It has a 270 I6, and a two speed dually rear end. Anyone willing to help to help a newbie out on what this truck is? (Please). Also, does anyone else have a schematic that covers frame dimensions for this truck that they'd be willing to share? Thanks in advance 3/28/18 So after more time spent trying to hunt down the info, I am left with dimensional and model info from Chevy data of the same year. I really don't know if they directly cross over. They Chevy data suggests a 6403 Chassis but the GVWR #s are off and my door tag clearly says 18,000lb, not 19,500. __________________ Forgive my typos, big fingers and little Android digital keyboard....what a mess 06 GMC Sierra crew cab Z71 DD leveling kit, 34's, bumper, LED lighting. Still doing stuff to it. 67 El Camino Custom 300 Deluxe. In progress. 55 GMC 371 2 1/2 ton. Upcoming project. Last edited by 7 Devils; 03-28-2018 at 11:48 AM. Reason: Update

03-29-2018, 07:43 AM	#2
buggy5872 Senior Member Join Date: Jun 2011 Location: North Beaver TWP PA Posts: 833	Re: Serial # confusion Look on this site. http://www.oldgmctrucks.com/page0009.html if you do not find the info email Rob and he will get it for you. __________________ ___________________________ 1959 Apache Short Fleetside, 1959 Apache NAPCO Long Stepside, 1957 3100 with 59 fleetside bed 1957 5700 LCF Crew Cab "Big Bertha",1959 GMC F370 1958 GMC 600, 1946 Chevy, 1959 Viking 60 LCF 1974 Elcamino SS, 1979 6500 GMC Tilt Bed Wrecker Big Bertha Build



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