Serial # Location TH400? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Texasdeere · 02-26-2007, 10:54 PM

I was trying to figure out if the TH400 transmission in my 72 C10 was original. I had the hump off the other day and found the tag on the passenger side of the case with some #s on it. Is this the serial # tag? or is it stamped in the case somewhere?

Thanks

Rod · 02-27-2007, 09:42 PM

The tag decodes the year ...usually the second number is the year.

Texasdeere · 02-27-2007, 10:14 PM

I was told or heard that part of the serial # of the engine and trans should match the vin of the truck. I haven't found the serial # of the engine yet but the casting # I found is correct for a 72 402 anyway (3999290).

How do you figure out if it is a "Matching Numbers" truck?

Rod · 02-27-2007, 10:24 PM

http://www.nastyz28.com/chevy-transm...tification.php

Rod · 02-27-2007, 10:27 PM

http://www.nastyz28.com/sbchevy/sblock.html
http://www.nastyz28.com/bbcmenu.html...FTjTJAod8jJ2gw
http://www.nastyz28.com/chevy-engine...ngs.php#suffix
http://www.nastyz28.com/chevy-transm...tification.php

Texasdeere · 02-27-2007, 11:06 PM

Thanks Mr. Rod!

Texasdeere · 03-10-2007, 05:38 PM

I found T0406TLM stamped on the front pass side of the block on a pad just below the cylinder head. The guide said it should be above the timing chain cover at the center of the engine.

So far : Tonawanda, April 06

Guess I will look for the clock next!

02-26-2007, 10:54 PM	#1
Texasdeere Registered User Join Date: Sep 2006 Location: League City, Texas Posts: 732	Serial # Location TH400? I was trying to figure out if the TH400 transmission in my 72 C10 was original. I had the hump off the other day and found the tag on the passenger side of the case with some #s on it. Is this the serial # tag? or is it stamped in the case somewhere? Thanks

02-27-2007, 09:42 PM	#2
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Serial # Location TH400? The tag decodes the year ...usually the second number is the year. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

02-27-2007, 10:14 PM	#3
Texasdeere Registered User Join Date: Sep 2006 Location: League City, Texas Posts: 732	Re: Serial # Location TH400? I was told or heard that part of the serial # of the engine and trans should match the vin of the truck. I haven't found the serial # of the engine yet but the casting # I found is correct for a 72 402 anyway (3999290). How do you figure out if it is a "Matching Numbers" truck?

02-27-2007, 10:24 PM	#4
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Serial # Location TH400? http://www.nastyz28.com/chevy-transm...tification.php

02-27-2007, 10:27 PM	#5
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Serial # Location TH400? http://www.nastyz28.com/sbchevy/sblock.html http://www.nastyz28.com/bbcmenu.html...FTjTJAod8jJ2gw http://www.nastyz28.com/chevy-engine...ngs.php#suffix http://www.nastyz28.com/chevy-transm...tification.php Last edited by Rod; 02-27-2007 at 10:29 PM.

02-27-2007, 11:06 PM	#6
Texasdeere Registered User Join Date: Sep 2006 Location: League City, Texas Posts: 732	Re: Serial # Location TH400? Thanks Mr. Rod!

03-10-2007, 05:38 PM	#7
Texasdeere Registered User Join Date: Sep 2006 Location: League City, Texas Posts: 732	Re: Serial # Location TH400? I found T0406TLM stamped on the front pass side of the block on a pad just below the cylinder head. The guide said it should be above the timing chain cover at the center of the engine. So far : Tonawanda, April 06 Guess I will look for the clock next! Last edited by Texasdeere; 03-10-2007 at 05:43 PM.



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