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#2
ebay, craigslist and the various GM Parts houses.
Though it will be difficult finding a 6L90 right now because I don't think it's actually out in any current vehicle yet.
There are some 6L80s out there though.
Though it will be difficult finding a 6L90 right now because I don't think it's actually out in any current vehicle yet.
There are some 6L80s out there though.