TRNW-2: Identifying 8L series units

[Steve Everett]

   I can find nothing in any of the tech I have that helps to identify a
unit,  the tI'ag on the trans has 0XNL in big letters ,  assuming it works
like most GM units it is apparently a 2020 unit?  which would be correct in
a 2021 vehicle,  I'm sure the XNL would tell me something? I just can't
find anything that tells me what ?

   I've agreed to work part time , 3 days a week at an Aamco here in the
Metro area,  and this is a stock unit they somehow ended up with,  another
builder built it and had left two thrust bearings out of it, and had at
least one of the snap rings indexed incorrectly, but when it get it all
back together I need to make note of what vehicles it will fit in ?   it
has a brand new GM valvebody on it that they don't remember buying ?

   Steve

On Wed, Jul 9, 2025 at 9:56 AM pat schulte <zzyzxpat at gmail.com> wrote:

> I know that the 8L45/50s I have seen do not use a dipstick and the fluid
> check is in the pan, but I think the very late 90s have gone that way as
> well. Not a stupid question, I have wondered this myself.
>
> On Wed, Jul 9, 2025 at 6:32 AM Steve Everett via trnw2 <trnw2 at trnw.net>
> wrote:
>
>> This is probably a stupid question,  does anyone know a way to tell if an
>> 8L is a 45,50 , or 90 by looking at the outside tag ?   similar to how we
>> identify the 6L's ?  I'm going through a unit someone built to make sure
>> its correct, and was told it came from a 2021 V6 camaro, which according to
>> what I looked up should be a 8L45,  but its not
>>
>>    I've built 6 or 7 of these, but haven't figured out how to tell them
>> apart yet
>>
>>    Steve
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>
>
>
> --
> Pat Schulte
> AAMCO Transmissions
> Temecula, Ca.
>
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