Section 136 (Driveshaft -- F150): Description

WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The source of the drivetrain's power is generated by the engine and delivered to the transmission. The driveline transfers the engine torque through the drive shaft to the axle. On 2WD vehicles, power is transmitted through the transmission to the drive shaft and then to the rear axle. On 4WD vehicles, power is transmitted through the transmission and the transfer case. The transfer case directs the power to the rear drive shaft and then to the rear axle. When engaged, it also transmits power through the front drive shaft to the front axle.

Universal joints are used at both ends of the drive shafts to allow for angular motions. Slip yokes are used to allow for any changes to the length of the drive shaft. The engine torque enters the axle through the drive pinion, which rotates the ring gear. The ring gear is mounted to the differential case, which contains the gears that transmit power to the rear axle shafts or front halfshafts. These shafts rotate the drive wheels.

The following types of drive shafts are available on F150 models:

One-piece rear drive shaft with 2 "U" joints and a front slip yoke.
Two-piece rear drive shaft with 3 "U" joints, a front coupling shaft, a center bearing and a rear drive shaft.
One-piece front drive shaft with one front "U" joint, a slip yoke and a rear Constant Velocity (CV) joint.