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what transmission do i have ?

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Old 03-08-2017, 04:17 PM   #1
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Default what transmission do i have ?

can anyone tell me by looking at the numbers if i have 4l60 or 6l80 or even 8l90 transmission. according to engines computer i have 2016 GM1500 engine. don't know what exact car it came out off. i think its 6l80e tranny , but got know how to clarify that . also is 4l60 dipstick the same as it is for 6l80? i heard hole is different size , true?? thanks in advance



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Old 03-29-2017, 01:45 PM   #2
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That is a 6L80 transmission and as for the dipstick it is $30 on ebay, I believe they are different dipsticks between the 4L60 and 6L80 so just to be safe buy the OEM Dipstick.

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Old 03-30-2017, 02:15 AM   #3
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Dockrocket1967 .
thank you for the response. for curiosity reason, how do you know the difference between 6l80 vs 6l90 .
For the record, whom might need this info for future: 4l60 dipstick hole size is different than 6l80/ 6l90 trannys. So they are NOT the same
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Old 03-30-2017, 09:19 AM   #4
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I know of some of the internal differences between the two but external differences are not much. I know there is a difference in pans but also the 6l90 is a little bigger...here is a dimension chart

https://www.powertraincontrolsolutio...Dimensions.pdf
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Old 03-30-2017, 09:57 AM   #5
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Also I need to revise my previous post. After doing a little more search on the numbers of the transmission it shows the transmission being behind a 4.3L which would be a 6L80. If it was for sure in a 1500 then that would be correct. The 24270744 Number is a 6L80 part number the 4CEA designates both transmissions available I guess
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