u/nothingaboutme

4l80e rebuild case damage question

4l80e rebuild case damage question

I’m rebuilding a previously unopened 4L80e from a 97 truck and noticed this small hole in the case where the clutch assembly rides behind the pump (4th clutch assembly?). Apologies if that’s not the correct terminology. Is this pinhole an issue, or just thin casting where the factory machining cut through just a little bit?

u/nothingaboutme — 6 days ago