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#1 |
Registered User
Join Date: Jul 2005
Location: Katy, TX
Posts: 48
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Help decode the firewall?
I can figure out most of the markings on the firewall. I guess some assembly plants (mine was from St. Louis) used this instead of a build sheet.
CE10934 would be the model. LS9 is the engine M49 is the TH350 A/C is fairly obvious. What is the T4 and 4T on the left and right sides? It doesn't seem to correspond to anything on the glovebox sticker. Except all the RPO codes have a 4 in front of them. 4 what? There was also ome marking I found on a rear cross brace over the axle that probably designated the axle ratio, but I blasted and painted over it.
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1970 CST-10 owned it 26 years, finally back on the road after a 10 year rest. 1989 Suburban 1971 Sleekcraft 455Olds Berkeley 1992 SC400 pimp ricer |
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#2 |
On the fast track to nowhere..
Join Date: May 2006
Location: Splendora, Texas
Posts: 5,316
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Re: Help decode the firewall?
Still trying to figure this one out huh. I don't have any idea what it means but I'm going to try and find out. It's been bothering me since the meet
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-Mike Owen- Norwood, Houston, Cecilia, Jackson, Monroe and counting |
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#3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Help decode the firewall?
Could be something like assembly line number and shift number... or something like that.
No tellin. |
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#4 |
Registered User
Join Date: Nov 2000
Location: Carver County, Minnesota, USA
Posts: 626
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Re: Help decode the firewall?
Usually you see "2T" when it is a two tone paint job: white cab, colored body.
Maybe for the fancier paint combo like yours, it's marked "4T" for four tone ? Haven't seen what the firewall markings are for a paint job like yours of white/dark gold/white. Maybe the "4T" is figured like this: First tone = white cab top Second tone = dark gold (hood/top color) Third tone = white side body Fourth tone = dark gold body bottom
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72 Chev C-10 90% restored (former AZ truck) ... 71 Chev K-20 Cheyenne my vacation crusier... 72 Chev C-10 Now retired and striped after many faithful miles... 72 GMC 1500 Retired to the junk yard after bought new in '71... |
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#5 |
Registered User
Join Date: Feb 2007
Location: (Cloverdale) Surrey BC Canada
Posts: 1,566
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Re: Help decode the firewall?
i have the same thing but its like a loop like the support our troops sticker behind each hood spring and i havent found what they are for
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Travis
travis_moffatt@hotmail.com ![]() 1969 Chevrolet C-10 LWB, 350c.i., TH350, In Pieces. 1991 GMC Sonoma, IROCS s10 grill 1963 Ford Galaxie 351/C4 |
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#6 |
Registered User
Join Date: Oct 2006
Location: denver nc
Posts: 97
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Re: Help decode the firewall?
The loops I have seen on Camaros. It is used like a check mark to verify something has been checked.
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70 CST Bunch of old Camaros ![]() |
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#7 |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: Help decode the firewall?
M49 (I believe) is for a Turbo 400. At least it is on my truck.
Are you going to leave all these markings on your truck, or will they go away if you repaint it?
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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#8 |
Registered User
![]() Join Date: Feb 2004
Location: Idaho
Posts: 4,034
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Re: Help decode the firewall?
Hey, I never really paid that much attention to those numbers before, is it true that they were used instead of build sheets?
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"Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!" |
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#9 |
Registered User
Join Date: Jul 2005
Location: Katy, TX
Posts: 48
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Re: Help decode the firewall?
Roger0080 - Except it was 3 tone-white top, gold middle, white below the lower trim.
ChevLoRay- I looked at the option list I have, you're right. M49 is TH400. But mine is definitely a TH350 with the anle corner on the drain pan. I doubt it was swapped, I bought this truck in 1978 with 32,000 miles on it. Are you dissin' my repaint job I did myself last year? It was less than $500 total, so I don't mind throwing stuff in the bed.
__________________
1970 CST-10 owned it 26 years, finally back on the road after a 10 year rest. 1989 Suburban 1971 Sleekcraft 455Olds Berkeley 1992 SC400 pimp ricer |
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#10 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
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Re: Help decode the firewall?
The 4T or T4 stands for the number of tires to be installed with a turbo 400. hehehehehe
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#11 |
SLOW BUT SURE,BUT CLOSER
Join Date: Feb 2002
Location: eleanor wv usa
Posts: 3,093
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Re: Help decode the firewall?
3-tone? Never heard that before.
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69 C-10, OWNED 35YRS... 350 over 30, 350 Turbo, 3:73 Posi P/S, P/B Black with red and black int. ''LOVE THESE OLD ''TRUCKS....... ![]() ![]() ![]() |
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#12 |
Registered User
Join Date: Jul 2005
Location: Katy, TX
Posts: 48
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Re: Help decode the firewall?
Wait.......... They can't be paint codes. The marks are on top of the gold firewall paint!
__________________
1970 CST-10 owned it 26 years, finally back on the road after a 10 year rest. 1989 Suburban 1971 Sleekcraft 455Olds Berkeley 1992 SC400 pimp ricer |
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#13 |
Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,079
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Re: Help decode the firewall?
On my 71 super, vin was on firewall as was the paint code under the brake booster, option code was also located on front core support and model number on firewall. Under bucket on drivers side carpet was 118 in white grease pencil. There were also several markings located on framerails- CE10734 (model #)- om 4x4 KE10734 located on rear frame crossmember, r14 on bellhousing and gentleman named john signed gas tank.
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