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08-05-2013, 09:09 AM | #1 |
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factory grease pencil marks?
I noticed these marks on my truck (70 C-10). I couldn't figure out why someone would have put them on the firewall, especially "blu" (I mean they obviously put it on there AFTER it was painted, right?) but then yesterday I noticed the same number on the inside of the RS fender when I pulled the inner and started thinking.
Are these factory assembly marks? Seems incredible they'd still be this intact after all these years if they are. If they are factory marks, then I've been spelling her name wrong all along- its "Blu", not "Blue." |
08-05-2013, 09:21 AM | #2 |
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Re: factory grease pencil marks?
Yup there factory
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08-05-2013, 09:22 AM | #3 |
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Re: factory grease pencil marks?
Yes these are factory my Gmc has them also.
Posted via Mobile Device
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08-05-2013, 09:26 AM | #4 |
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Re: factory grease pencil marks?
That's pretty cool and amazing to me that they lasted this long. Guess I better be careful when I clean under the hood (and apparently nobody else ever cleaned under there!)
Thanks guys.... |
08-05-2013, 10:10 AM | #5 |
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Re: factory grease pencil marks?
Hey John, As you continue to disassemble your truck, if you find anymore grease pencil markings could you post the pics up in this thread? Keep a eye out for that 902 number. That's probably the last 3 digits of the "job number" of your truck. The BLU is the first time I've seen a color name instead of the code, but I'm sure it's factory. It could be referring to the paint or interior color.
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08-05-2013, 10:12 AM | #6 | |
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Re: factory grease pencil marks?
Quote:
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08-05-2013, 01:02 PM | #7 | |
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Re: factory grease pencil marks?
Quote:
You might see it on the hood, rad support, fenders, grille, rear axle, inside the wheels: on anything that was built up remotely and then conveyed to the final line in sequence. My truck was number "87" (my truck was built on a Monday, btw ). K
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08-05-2013, 01:22 PM | #8 | |
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Re: factory grease pencil marks?
Quote:
This is kinda like ancestry.com for gearheads, eh? |
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01-03-2014, 12:02 PM | #9 | |
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Re: factory grease pencil marks?
Quote:
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01-03-2014, 12:13 PM | #10 |
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Re: factory grease pencil marks?
Great thread!
#214 is in my shop and destined for greatness
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08-05-2013, 11:24 AM | #11 |
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Re: factory grease pencil marks?
I don't think the BLU is a color but an inspectors initials my blue truck had ASH or ASK it was real sloppy couldn't tell which it said..
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08-05-2013, 12:59 PM | #12 |
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Re: factory grease pencil marks?
My 67 still has them. Didn't see any around the fenders when I had them off, but I wasn't looking either. I would like to try and figure out a way to preserve this, even though the original 327 is long gone.
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08-05-2013, 01:03 PM | #13 |
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Re: factory grease pencil marks?
I confirmed yesterday that I still have the original engine and transmission (matched the serial numbers to the protect-o-plate). I don't have a particularly collectible truck (long bed with no cool options) but its still neat.
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08-05-2013, 01:24 PM | #14 |
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Re: factory grease pencil marks?
I totally agree! Very cool indeed! that is the one thing about my truck, it has factory buckets, and a few other options, but the glove box doesn't look like there was ever a SPID, no residue at all. no protect-o-plate, or build sheet. Just the grease pencil marks on my firewall.
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Justin '67 C20 CST Custom Camper '04.5 LLY Duramax CCSB...sold |
01-03-2014, 04:00 PM | #15 |
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Re: factory grease pencil marks?
My 67 has em!
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01-03-2014, 04:12 PM | #16 |
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Re: factory grease pencil marks?
Get off the computer and go get some photos!!
(lol) K
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01-03-2014, 04:28 PM | #17 |
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Re: factory grease pencil marks?
. . . .
My 70 C-10 has them . . . a "635" job number and the letter "B". ( I've always assumed that the "B" was for the Baltimore Plant ) There "WAS" also an "AIR" on the inside of the right fender. ( The truck does have factory air, so that's probably what that meant ) . . . .
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01-03-2014, 04:48 PM | #18 | |
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Re: factory grease pencil marks?
Quote:
If that's the original color my guess would be the "B" stands for "Blue". K
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01-03-2014, 05:54 PM | #19 | |
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Re: factory grease pencil marks?
Quote:
I thought the same thing about it already being in Baltimore, but it was already BLUE when it was written on the firewall too !!! LOL ( that is the original paint on the firewall ) We'll probably never know for sure. |
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01-03-2014, 07:20 PM | #20 |
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Re: factory grease pencil marks?
Had this under the green paint. Matched all the grease marks all over the truck. Looks to be painted on with a brush. Built in Janesville.. 68 cab
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Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039 Last edited by sboris; 01-03-2014 at 07:28 PM. |
01-03-2014, 07:30 PM | #21 |
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Re: factory grease pencil marks?
Bruce,
here is a 72 Sierra Grande with paint color on the firewall. it looks like it may have been put on before the paint and again in white grease after paint? I have another example with GMC noted from my 69. |
01-03-2014, 07:33 PM | #22 |
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Re: factory grease pencil marks?
The 69 is gold with saddle interior.
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11-17-2014, 09:37 PM | #23 | |
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Re: factory grease pencil marks?
Quote:
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01-03-2014, 07:49 PM | #24 |
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Re: factory grease pencil marks?
Also just curious, is that stamp on the firewall edge on 72 only? My 68 don't have it. Or plant specific maybe..
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01-04-2014, 12:02 AM | #25 |
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Re: factory grease pencil marks?
Any body know what the "4T" on the Sierra Grande firewall stands for? My Cheyenne Super has the same 4T.
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