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How to Switch a 1986 Ford F150 4X4 Into Four Wheel Drive

The 1986 Ford F150 shipped from the factory with two four-wheel drive hub options; automatic locking hubs and manual locking hubs. With manual locking hubs, you need to get out of the vehicle and manually lock the front hubs before the truck will engage the four-wheel drive. With automatic locking hubs, all you need to do is engage the four-wheel drive with a lever and they will automatically lock within a few revolutions of the front wheels. While automatic locking hubs are a nice feature, some owners actually prefer the manual locking hubs because they are less prone to malfunctioning due to their simpler design.

Instructions

1

Stop the truck shift it into park, or first gear for trucks equipped with a manual transmission. Apply the parking brake.

2

Exit the truck and rotate the locking switch at the center of the wheel hubs to the lock position. If your truck doesnt have these switches, then you have automatic locking hubs and can skip this step.

3

Shift the transmission into neutral. Move the four wheel drive selector lever to the left, then down into your desired four wheel drive range. Use 4-LOW for low speeds below 15 miles per hour and increased torque. Use 4-HI for driving at road and highway speeds.

4

Shift the transmission back into drive, or first gear for trucks with a manual transmission. Release the parking brake, then drive forward 20 to 25 feet to engage the four-wheel drive hubs.