700r4 ID

[69SCSS]

hey guys, been searching the net like crazy to find out what this trans is out of, and I'm leery of picking it up unless I know what it is actually out of, even for $100. But here's what the guy is giving me for the ID: 9Y3125D. That doesn't correspond to any of the decoders I've found. Most have a number for the first digit, three letters, 3 numbers, and a letter. 8 digits for 86-93 and 7 for 82-85, because it only had 2 letters for model. It also had an "M" on all of them. i don't know if this guy is reading the ID stamp wrong, but anyone have any idea? I'm going to be in the area tomorrow morning and will literally be driving right by, but if the guy tells me the ID is that and he's calling it a 700R4, I'm a little leery of even going by.

Any help is appreciated. A link to decode it would be great. I will still need to find a trans if this isn't the real deal.

[buckskins4ever]

Well not sure about decoding the id.....but if you want to know if its a 700r4 opposed to a TH350 or TH400 you can easily move the shifter linkage. I wouldnt buy a used trans without doing that anyways. It can tell you either you have a 4 speed or 3 speed and will allow you to at least know its not locked up.

[69SCSS]

He posted a pic of the trans and it's definitely a 700r4, but I need to know which one, early/ late, v6/v8, etc. I don't want to get a weak one and have to upgrade it to beef it up and spend more money than just finding a decent v8 one that I clean up and run. For $100 I can pick it up and have it gone thru to make sure it's ok, but if it's a v6 one I don't wanna waste my time.

So far all I can find is that if it doesn't have an "M" in the code, it's an earlier one, and those have 27-spline input shafts and the weaker internals.

Here's the ad: http://salem.craigslist.org/pts/3720830002.html

[Keith Grizzle]

I think all of your v6 are metric bolt pattern, which you do not want.I think 86 on up is the 30 spline shaft also.