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Home >> Lincoln >> 2019 >> Navigator Select, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - 10-Speed Automatic Transmission - 10R80 (1 Of 2) >> Description And Operation >> Transmission Description - System Operation and Component Description >> System Operation >> Powerflows >> 4th Gear

4th Gear

GFD273371Courtesy of FORD MOTOR COMPANY
Item  Description 
1 C clutch
2 D clutch
3 F clutch
4 Planetary gear set No. 3
5 Planetary gear set No. 4
6 Planetary carrier No. 1
7 Ring gear No. 2
8 A clutch
9 Ring gear No. 1
10 Input shaft
11 Output shaft and planetary carrier No. 4

The C clutch, D clutch, and F clutch are applied effectively locking the 3rd and 4th planetary gear sets, the planetary carrier No. 1, and the ring gear No. 2 together. The A clutch is holding the ring gear No. 1. The 2 inputs to the planetary gear set No. 1 cause the sun gear No. 1 and the sun gear No. 2 to rotate at a 0.56 overdrive ratio. The input shaft turns the planetary carrier No. 2 and causes the ring gear No. 2 and the 4th planetary gear set to rotate at a 1.77 ratio.