Second Gear POWERFLOW
WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Second gear is achieved by having both planetary gear sets contribute to torque multiplication ( Fig 1). As in first gear, torque input is through the under-drive clutch to the rear sun gear. The 2/4 clutch is applied to hold the front sun gear stationary. The rotating rear sun gear turns the rear planetary pinions. The rear pinions rotate the rear annulus/front carrier assembly. The pinions of the front carrier walk around the stationary front sun gear. This transmits torque to the front annulus/rear carrier assembly, which provides output torque and a gear ratio of 1.57:1.