Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Alignment: Customer Interest
Steering - Pulling or Drifting
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STEERING - PULL OR DRIFT - CASTER Article No.
ADJUSTMENT SERVICE KIT
87-4-16
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SUSPENSION - FRONT - CASTER ADJUSTMENT SERVICE KIT
LIGHT TRUCK 1980-86 F-150 (4x4), BRONCO
ISSUE:
A steering drift or pull may be caused by excessive front wheel side-to-side caster angle differences.
ACTION:
If a front axle alignment check shows excessive (more than 3/4 degree split) side-to-side caster angle difference causing the vehicle to drift
or pull, install a new caster adjustment kit (E0TZ-3K064-A) which allows the front axle side-to-side caster angles to be changed up to 2-1/2
degrees in 1/2 degree increments. New front axle to radius arm brackets must also be replaced when the caster kit is installed. Refer to the
following service procedure for step-by-step instructions.
NOTE THE FOLLOWING INFORMATION BEFORE DOING WORK ON THE VEHICLE.
To correct caster side-to-side difference of up to 1- 1/2 degrees, install a caster adjuster plate on the radius arm that has the lower caster reading.
Adjuster plates are identified R.H. and L.H.
To correct caster side-to-side difference more than 1-1/2 degrees, install the caster plate on both radius arms. Installing both plates will allow a caster
split change of 2-1/2 degrees (+1-1/2 degrees on the low caster side, -1 degree on the high caster side).
1.
Remove radius arm from vehicle.
Figure 14 - Article 87-4-16
2.
Locate the template, included in the kit, on the bottom flange of radius arm over the existing holes, as shown in Figure 14.
NOTE:
Right arm adjustment is shown. One template is used to modify both right and left hand arms. When modifying right arm, position
template with printed side down (printed side up for left arm).
