What causes the front of the car to act as if the anti-lock breaks are engaging.

Check to see if the ABS sensor is clogged with brake dust grime, metal shavings and dirt. This magnetic sensor can be removed from the car and simply cleaned off before you buy anything. Remove the wheel. Follow the electrical connector line to the sensor, which will be sitting on the wheel hub. One or two bolts will be holding it in place. Remove the sensor, use a rag to remove the metal shavings and dirt. Spray brake cleaner on the rag and wipe it down. Reinstall the sensor. Try that before doing anything else.