How many hours do dealers charge for removing and replacing a 4L80E transmission in a 1995 Chevy k2500? (if they go by book time)

usually 6-7 hours would be R&R time. 8 if replacing would be high end. Add for incidentals like broken exhaust bolts.

Ok, now I know what to expect.
I will probably take it in on thursday if they have room.

Thanks