6L80/90 power flow

[kevm14]

https://www.youtube.com/watch?v=cGsy2C4B8E8

One noteworthy difference is the clutch to clutch shifting. There are no bands here.

[Adam]

TH400 = 3L80
Always wondered how the older transmissions stacked up to the newer ones in factory applications.

[kevm14]

My first thought is that they used to build transmissions to shift through full engine torque. Newer ones can be built knowing there will be torque management.