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Are all 4l80e's the same ?

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Old 07-13-2010, 09:35 PM
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Default Are all 4l80e's the same ?

I have a 2001 4l80e in my 67 chevelle and I am looking for a spare , are there any differences that I should be looking for or are they all the same ? thanks for the help. JOHN
Old 07-13-2010, 11:08 PM
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People generally want the '97+ ones due to the upgraded electronics. They also have the 12 o'clock bolt hole on the bellhousing.
Old 07-13-2010, 11:09 PM
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also make sure it's a 2wd trans and not a 4wd version...
Old 07-14-2010, 06:19 AM
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they made diff changes thru the years, pretty much around 95 up is good
sup very early had a diff force motor requirement
the 12 o clock hole thing is good, but i have found the same year trans w/wo it, so for some reason they didnt use it in some alppcs.
yours prob has the rear return line, an older one would have it up front, so a diff line would need to be run
i have aquired a few spares myself, lol-had a string of them bought for $100
hate to pass them up that cheap
Old 07-14-2010, 08:58 AM
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1997 and up have the center lube, and other lube mods.
1999 and up had the 12 o'clock bolt hole, wider front band, wider planetary gears.
2001 and up have a different overrun roller clutch.

As long as they work they work well.
The differences are good to know when swapping parts.



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