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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.
2025 C3 ('68-'73) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
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" ?
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?
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?
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.
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.
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.