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1972 lt1 transmission

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Old Oct 11, 2011 | 10:18 AM
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Default 1972 lt1 transmission

Looking at purchasing a 1972 LT1 coupe. The engine codes are all correct, as well as intake, carb, and ignition.
The transmission was changed, but a period correct M21 was installed.
A.I.R. system is missing.

How does the lack of these two items affect value?
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Old Oct 11, 2011 | 11:32 AM
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I would guess the missing A.I.R. would run 1K for a properly dated set up. The transmission may be period correct but without the correct date code you are looking at a couple of thousand to replace it.
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Old Oct 11, 2011 | 01:16 PM
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Originally Posted by jrheyerly
...How does the lack of these two items affect value?...
Up to you. Do you want this particular car?

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Old Oct 11, 2011 | 02:11 PM
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The AIR is a managable item to be missing, if you look long enough and spend ~1,500.00 you can buy the correct dated parts and put them back.

The trans is different.

There are only 2 items on the car that have the frame VIN # stamped into them, the block and the transmission.

You will never be able to correct the missing trans unless the current owner knows who has it. LONG SHOT!!!

The trans being non oroginal would have a big effect on selling the car at a future date for TOP $$


David
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Old Oct 11, 2011 | 02:29 PM
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Transmission is NOT stamped with VIN like the engine is. It should be the correct date code. However many transmissions and engines were replaced under warranty so these cars may still be considered "original" in some respect.
I played the numbers matching game for years and it gets very boring and not fun. I have kept all of the original parts from my car in case i want to go back to numbers matching someday, but I doubt it. Having too much fun actually hauling ***!

Reid '72 T-top

Last edited by vncruiser; Oct 11, 2011 at 02:30 PM. Reason: spelling sucked
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Old Oct 11, 2011 | 02:53 PM
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Originally Posted by vncruiser
Transmission is NOT stamped with VIN like the engine is. It should be the correct date code. However many transmissions and engines were replaced under warranty so these cars may still be considered "original" in some respect.
I played the numbers matching game for years and it gets very boring and not fun. I have kept all of the original parts from my car in case i want to go back to numbers matching someday, but I doubt it. Having too much fun actually hauling ***!

Reid '72 T-top
The transmission on a 71 is stampled with VIN of the car, I own one.

I may be mistaken on a 72, but I thought they were also.
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Old Oct 11, 2011 | 03:05 PM
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Originally Posted by vncruiser
...Transmission is NOT stamped with VIN like the engine is...
Originally Posted by dmayhew
...The transmission on a 71 is stampled with VIN of the car...I may be mistaken on a 72, but I thought they were also...
Blocks, trannies, and frames (two places) have VIN derivitive stamps (all model years). Engine and trans were stamped by the same workman using the same gang tool.


Frame stamps were done by machine.


After making this stamp, the worker woudl move back to the top of the frame rail just in front of #4 mount and stamp the frame a second time.

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Old Oct 11, 2011 | 05:22 PM
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Not sure why folks think original trans is so important to value. The original engine not only has the vin derivative but that vin proves car is an original LT-1. Original engine is important. Depends what you want out of the car. Even if you wanted to have it flight judged at NCRS meets, I have seen a top flight 69 missing AIR (car was near perfect otherwise), and I don't believe the vin stamping on the transmission is even seen or verified during NCRS flight judging. (Please correct me if I am wrong), so, knowing the trans is not original to the car is a good piece of information to have, but I don't think it hurts the market value more than $1 or $2k.
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Old Oct 11, 2011 | 05:34 PM
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Originally Posted by PRNDL
Not sure why folks think original trans is so important to value. The original engine not only has the vin derivative but that vin proves car is an original LT-1. Original engine is important. Depends what you want out of the car. Even if you wanted to have it flight judged at NCRS meets, I have seen a top flight 69 missing AIR (car was near perfect otherwise), and I don't believe the vin stamping on the transmission is even seen or verified during NCRS flight judging. (Please correct me if I am wrong), so, knowing the trans is not original to the car is a good piece of information to have, but I don't think it hurts the market value more than $1 or $2k.
Personally, I like to try to just asnwer the question as asked by a member.

I think the affect on the value of the car is something that the potenial buyer has the right to assign in each case.


When you call a car an Original Matching Numbers car, the trans and block are 2 items that need to be present. and if they are not there, that makes the possibility of correcting the missing items impossible.

My reply was not related to getting the car judged by the NCRS, who I agree do not crawl under the car and look at the stamp on the trans. But if the OP may want to sell one day after investing dollars to improve the look and condition of the car, the lack of the original transmission may well cause some buyers to pass on a car that they may otherwise have considerd paying a premuim for.

Last edited by dmayhew; Oct 11, 2011 at 05:39 PM.
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Old Oct 11, 2011 | 06:29 PM
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Hi j,
I agree that having the transmission the car left St. Louis with might be icing on the cake, but I also believe that matching numbers and date codes go FAR beyond the engine stamp pad, casting number, and casting date. Some cars have SO MANY original parts still on them that they sort of OVERWHELM you as you start to check them out carefully.
I guess it only matters as much as it matters to you, and as much as it is reflected in the car's price.
In the unattainable situation of the same car 'with' and 'without' the original transmission, wouldn't the 'with' car be worth a little more $ ?
Regards,
Alan

For a few people, are original parts sort of like horsepower is for most people... you can never have too many?
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Old Oct 11, 2011 | 08:33 PM
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Originally Posted by dmayhew
The transmission on a 71 is stampled with VIN of the car, I own one.

I may be mistaken on a 72, but I thought they were also.
You are, once again, correct.
My '72 LT1 air car is original.
Tranny is stamped, along w/engine.
Regards,
Chuck

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Old Oct 11, 2011 | 08:42 PM
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Originally Posted by PRNDL
Not sure why folks think original trans is so important to value. The original engine not only has the vin derivative but that vin proves car is an original LT-1. Original engine is important. Depends what you want out of the car. Even if you wanted to have it flight judged at NCRS meets, I have seen a top flight 69 missing AIR (car was near perfect otherwise), and I don't believe the vin stamping on the transmission is even seen or verified during NCRS flight judging. (Please correct me if I am wrong), so, knowing the trans is not original to the car is a good piece of information to have, but I don't think it hurts the market value more than $1 or $2k.
Original tranny w/original stamping is another component in the overall completeness of the car, nothing more,...nothing less.

Each and every aspect and component of an anticipated purchase is subject to scrutiny. The agreed price should be reflective of the car.

Different strokes/different folks.

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