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Old 06-09-2011, 06:21 PM
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transmission lineage

I installed a 700-R4 tranny in my '73 Z28.
Lookin' to find out in what GM vehicle this tranny was originally installed.
The numbers on the case are:
8663549 and 1LA123316
Can anyone help decifer these numbers? Which is actually the serial number?
Thanks.

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Old 06-10-2011, 07:51 AM
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Transmission

This trans has been used since 1982 in cars and trucks. The bast way to decide which linkage to use in my opinion would be what measures best for your needs. Its to difficult to answer this question with any other reply with so many uses from this trans sorry. So just measure and make a good hypothetical guess or go aftermarket if you are not worried about it being stock.
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Old 06-11-2011, 10:48 PM
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misrepresentation

Thanks EVESTR.
Reading your response tells me I created some confusion. I am not looking for linkage, I'm looking for lineage. What car/truck did my 700-R4 come from? Can anyone answer that question for me based on the numbers from my original thread?
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Old 06-12-2011, 12:07 AM
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Quote:
Originally Posted by Roadz
Thanks EVESTR.
Reading your response tells me I created some confusion. I am not looking for linkage, I'm looking for lineage. What car/truck did my 700-R4 come from? Can anyone answer that question for me based on the numbers from my original thread?
After taking a look at the bit of info I have on the 700R4/4L60/4l60E, the codes you list (1LA123316) seem to indicate a '91 date, but after that there should be 3 (not 2) letters indicating what the vehicle was, etc.

So, you sure the numbers are correct, and are they STAMPED numbers? You might do a search for where the stamped numbers that are needed, are located.
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Old 06-13-2011, 08:12 AM
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Thanks for replying cobalt327.

The numbers are stamped into the case.
The number 1 after the letter 'A' may be an I (eye). It isn't the best stamp I've run across. Would that indicate a specific vehicle?

I'll do more homework on my end too.

Thanks again.
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Old 06-13-2011, 08:25 AM
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Quote:
Originally Posted by Roadz
The number 1 after the letter 'A' may be an I (eye). It isn't the best stamp I've run across. Would that indicate a specific vehicle?
It could be, and I went so far as to look for that as the code, i.e. "LAI" and I still came up empty. If I happen across anything else I will post it here.

Good luck.
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Old 06-13-2011, 09:26 AM
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LA I thinking

I do not think Chevy ever used a I in its vin always a 1 indicating Chevy is all it meant but la does i think if correct LA or CA i mix them up was Monte Carol hope it helps.
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Old 06-13-2011, 10:12 AM
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Thanks for your time and effort.

ROADZ
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Old 06-13-2011, 10:26 AM
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Quote:
Originally Posted by Roadz
Thanks for your time and effort.

ROADZ
You saw this? http://www.hotrodders.com/forum/imag...TH700-R4_1.jpg

That's what I'm partially going by- the "1" would indicate "1991", but if that's correct- and the rest of the info here is also correct- there should be a three letter code following the "1".

It's possible that "LAI" is correct, but like I mentioned earlier- I found nothing relating to that three letter code. Perhaps someone else like SSedan64 will have something to add if he sees this thread- he knows these things pretty danged well, AFAIK.
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Old 06-13-2011, 12:06 PM
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Number

Give me all numbers and where they are located on the trans maybe i can narrow it down for you. Remember always be specific when wanting details. Always start with (all) the numbers first you know the old saying who,what,where,when,why, gives us more to go on and that location of that 1 would be the Month always Month date year Chevy is it may have suffix code in them thanks.
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Old 06-13-2011, 12:09 PM
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Quote:
Originally Posted by evetsr
Give me all numbers and where they are located on the trans maybe i can narrow it down for you. Remember always be specific when wanting details. Always start with (all) the numbers first you know the old saying who,what,where,when,why, gives us more to go on and that location of that 1 would be the Month always Month date year Chevy is it may have suffix code in them thanks.
Numbers in post #1. AFAIK he doesn't have any others.
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Old 06-13-2011, 12:11 PM
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I'll raise the car today and see if I can find out where the numbers are. I installed the tranny in '05 so some of the brain cells from back then have been fried.
I looked briefly the other day before writing my thead but the headers were in the way and I had limited access. I'll get it way up today.

Thanks evestr
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Old 06-13-2011, 02:35 PM
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Numbers

There are More numbers on this trans Period! GM never made a turbo 400 or turbo 350 without at least 3 sets of numbers unless the trans is stolen and numbers were filed off. then you look under the pan.
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Old 06-13-2011, 02:44 PM
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Quote:
Originally Posted by evetsr
There are More numbers on this trans Period! GM never made a turbo 400 or turbo 350 without at least 3 sets of numbers unless the trans is stolen and numbers were filed off. then you look under the pan.
This is a TH700R4, the location of the numbers I want are shown in the link I provided above.

I don't know if you are just having a bad day, or difficulty keeping up, or are just winging it- but please don't try to help unless you know what you're talking about- it's bad enough as it is.
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Old 06-13-2011, 03:27 PM
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with those

It is with some of that number HD heavy Duty Tag will not reflect common with 396 400 427 454 government. it says. This would have been a special order trans for yr 81 if it has CG in the vin and what ever was behind it had 390 HP Chevy, Monte Carlo, Chevelle, Police as i stated Police. It does not matter what it is, it is a TH400 all the same except heavy duty has a stronger Bell housing and a little shift difference in police issue, trucks had same shift as police. All parts are interchangeable. Does this help? Now for what it was exactly in without vin????????????????????? you guess is good as mine. Good luck.
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