TH400 Reverse pattern manual shift valve body with engine braking in 2nd gear and 3rd gears.
This allows for down shifting into 1st gear while coasting down, instead of having to wait until your at a complete stop.
This valvebody uses the 2nd gear brake band. This helps when downshifting from 3rd to 2nd. Like when trying to roll race.
Typically used for street driving.