Pre-Aiming Instructions

Inspect for badly rusted or faulty headlight assemblies. These conditions must be corrected before a satisfactory adjustment can be made.
Inspect tire inflation, and adjust if necessary.
If the fuel tank is not full, place a weight in luggage room of vehicle to simulate weight of a full tank [3 kg (6.5 pounds) per gallon.]
There should be no other load in the vehicle other than driver or substituted weight of approximately 70 kg (150 pounds) placed in driver's position.
Thoroughly clean headlight lenses.
Place the vehicle on a level floor, perpendicular to a flat screen 7.62m (25.0 feet) away from the bulb center-marks on the headlight lens.
Rock vehicle sideways to allow vehicle to assume its normal position.
Bounce the front suspension through three (3) oscillations by applying the body weight to hood or bumper.
Four lines of adhesive tape (or equivalent markings) are required on screen or wall:
1. Position a vertical tape or mark so that it is aligned with the vehicle center line.
2. Measure the distance from the center-marks on the headlight lens to the floor. Transfer the measurement to the screen. Horizontal tape or mark on the screen is for reference of vertical adjustment.
3. Measure the distance from the center line of the vehicle to the center of each headlight. Transfer the measurement to the screen. Vertical tape or mark on the screen with reference to the center line of each headlight bulb.
  
  Fig 1: Measuring Distance From Center Line Of Vehicle To Center Of Each Headlight
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.