Ragnarok0451 Posted June 2, 2018 Report Share Posted June 2, 2018 What transmission came in an 03 Silverado ss from the factory? I've heard 4l60e and 4l65e and don't know which is true? Planning on buying one from finish line here in the future and want to make sure I get the correct one for a direct replacement Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted June 2, 2018 Report Share Posted June 2, 2018 4L65E is stock. You use yours as a core and you get another 4L65E back from them. Quote Link to comment Share on other sites More sharing options...
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