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Old Sep 27, 2006 | 09:56 AM
  #1  
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I just took the jack out of my 72.
Does anyone know how to decipher the date code on it to see if its correct?

It is stamped 9 B 15

Thanks
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Old Sep 27, 2006 | 10:05 AM
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The jack date code is a number for the year and a letter for the month. As an example the code on my jack is 1 D which is 1971 April. I don't know what the 15 is on your jack. Check the pad area of the jack...you should see the letter A for AUSCO Co.

Your's could be 1969 Feb but it shouldn't have a second number.

Or if it's a replacement jack then it could be 1979 Feb and the second number is for the day of the month (they might have changed the date coding by then). But that's just a guess on my part.

Last edited by gq82; Sep 27, 2006 at 10:10 AM.
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Old Sep 27, 2006 | 10:46 AM
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Oh no ... Here's hoping that 'numbers matching' doesn't start extending to jacks and spare tires as well :-)
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Old Sep 27, 2006 | 10:48 AM
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I guess it could be a replacement, or a later dated jack.
The top pad of the jack looks smaller than it should for some reason.
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Old Sep 27, 2006 | 10:49 AM
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Originally Posted by Midwest Muscle
Oh no ... Here's hoping that 'numbers matching' doesn't start extending to jacks and spare tires as well :-)
It came out of a custom car, so there's no NCRS application here!
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Old Sep 27, 2006 | 11:33 AM
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Originally Posted by Midwest Muscle
Oh no ... Here's hoping that 'numbers matching' doesn't start extending to jacks and spare tires as well :-)
Ah yes, jacks and spare tires are judged for originality and date coding at NCRS shows.

Last edited by gq82; Sep 27, 2006 at 11:50 AM.
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Old Sep 28, 2006 | 04:21 AM
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Originally Posted by gq82
Ah yes, jacks and spare tires are judged for originality and date coding at NCRS shows.
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Old Sep 28, 2006 | 09:58 PM
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Originally Posted by Midwest Muscle
Oh no ... Here's hoping that 'numbers matching' doesn't start extending to jacks and spare tires as well :-)
OH YEAH.........the real freaks do care !! hummmmmmmm that would include me.........BUT...............?????
if everything else is date coded & #'s matching, why stop at the "JACK" ?
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Old Sep 29, 2006 | 01:11 AM
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Originally Posted by 427SIXPACK
OH YEAH.........the real freaks do care !! hummmmmmmm that would include me.........BUT...............?????
if everything else is date coded & #'s matching, why stop at the "JACK" ?
They don't.

The judging checks a lot of stuff that can be seen with the car sitting on the ground in the normal position. That means things like wheel codes that are hidden behnd trim rings, transmission numbers you can'd see unless you are the same diameter as a 2 inch pipe, and so on manage to slide by unnoticed.

Which is strange, when you think about it, since the air cleaner is removed. I think the shielding around the distributor gets opened up, also.

Why not a set of ramps to drive on and check the transmission?
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Old Sep 29, 2006 | 07:23 AM
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Originally Posted by Procrastination Racing
They don't.

The judging checks a lot of stuff that can be seen with the car sitting on the ground in the normal position. That means things like wheel codes that are hidden behnd trim rings, transmission numbers you can'd see unless you are the same diameter as a 2 inch pipe, and so on manage to slide by unnoticed.

Which is strange, when you think about it, since the air cleaner is removed. I think the shielding around the distributor gets opened up, also.

Why not a set of ramps to drive on and check the transmission?
Safety!
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Old Sep 29, 2006 | 02:50 PM
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Originally Posted by emccomas
Safety!
From what, a bunch of fat old men having to get on the ground and then try to get back up?

Not all of these guys are in as good of shape as you and I are.

The free-standing four post with the '57 at Old Town was less safe than a set of regular car ramps. That thing was moving around with people leaning on the posts. Of course, the 20 or more people under it would have only had to hold a little over 100 lbs each to keep the car up.
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Old Sep 29, 2006 | 07:04 PM
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Where are the numbers located on the jack please?
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Old Sep 29, 2006 | 09:38 PM
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On the outer arm near the cranking end.
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Old Oct 1, 2006 | 03:48 AM
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Originally Posted by Maco Shark
I just took the jack out of my 72.
Does anyone know how to decipher the date code on it to see if its correct?

It is stamped 9 B 15

Thanks
The answer to your question after dozen others "BS" around is that you've got a Feb 15 79 produced jack. The 9 is year, B = month and 15 = day. The code format (9 B 15) was used from 79-82 while the code format 3M was used from 68-75. The jack you have was produced by Stant Manufacturing and will probably have the smp stamped on the bottom center of the jack. Stant made jacks for Corvettes from 76-82 while Ausco made jacks for Corvette from 68-75 and stamped with an "A"

Last edited by hunt4cleanair; Oct 1, 2006 at 03:50 AM.
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Old Oct 1, 2006 | 04:16 AM
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So what was the date coding like for 77 & 78?
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Old Oct 1, 2006 | 12:00 PM
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Originally Posted by hunt4cleanair
The answer to your question after dozen others "BS" around is that you've got a Feb 15 79 produced jack.
I don't think my answers were "BS".....
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Old Oct 2, 2006 | 04:31 AM
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Originally Posted by gq82
I don't think my answers were "BS".....
I agree...my apology for grouping your responses with others
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Old Oct 2, 2006 | 04:33 AM
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Originally Posted by I'm Batman
So what was the date coding like for 77 & 78?
1976-78 used a three digit Julian code like 743 where the first number is year and the next two are week of the year. The code above computers to 43 rd week of 1977 or sometime in October.
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