Quoted From Shaun_300:
The 4L60 holds about 5 quarts just dropping the pan. When I do a rebuild on one and have the thing right down to a bare case with no valve body and torque converter drained it’s more like 10 quarts or maybe more.
Thank you Shaun_300…That must be what they were talking about because they said 5 quarts at first and then they said Fill 10. So that clarifies it.