4l80e pump changes through the years
I recently bought a batch of cores that all have smoked pumps. The refurb pumps I buy are spec'd 1999-2003 model years.
At least one of these cores is a 2004+ judging by the EPC connector plug.
I was hoping someone could point me to some compatibility data.
I mostly use '99+ cores as that what all the LS swap guys want ( the 12 oclock bolt hole aka the $200 bolt hole)
But I do have some 97/98 on hand and do the occasional '96 and earlier for a customer that needs a direct swap for their model year vehicle.
Thanks for any info
This covers most of it
If you need any more help be sure to ask!
4L80E Core Year Changover
As usual there are more/ other smaller details; but the bulk is in the article, just as in The Monster's article.







