Ford F87Z-4234-BB Shaft

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Support the lower control arm with a floor jack, ensuring it is securely supported at its outer end.

A thorough check should be performed before assuming a rear axle problem, as many times the issue may lie elsewhere.

Slide the shaft and joint assembly through the knuckle and engage the splines on the shaft in the carrier.

The common noises associated with rear axle diagnosis procedures include: Road noise: Often mistaken for mechanical faults. Driving the vehicle on different surfaces will show whether the road surface is the cause of the noise. Road noise will remain the same if the vehicle is under power or coasting. Tire noise: Sometimes mistaken for mechanical problems. Tires that are worn or low on air pressure are particularly susceptible to emitting vibrations and noises. Tire noise will remain about the same during varying driving situations, whereas rear axle noise will change during coasting, acceleration, etc. Engine and transmission noise: Can be deceiving because it will travel along the driveline. To isolate engine and transmission noises, note the engine speed at which the noise is most pronounced. Stop the vehicle, place the transmission in Neutral, and run the engine to the same speed. If the noise is the same, the rear axle is not at fault.

Lower the bracket away from the spring, then remove the U-bolts.

Remove the upper control arm balljoint-to-steering knuckle nut and pinch bolt, then separate the upper arm from the knuckle.

Unbolt the brake line junction block from the axle housing and detach the brake lines from the clips on the axle housing. Disconnect the rear anti-lock electrical connector from the sensor on the axle housing.

Install the brake drums.