Curb Height Measurement
OVERVIEWThe vehicle suspension height must be measured and adjusted if necessary before performing wheel alignment on a 4x4 vehicle. Also when front suspension components have be replaced. This measure must be performed with the vehicle supporting it's own weight and taken on both sides of the vehicle.
HEIGHT MEASUREMENT
1. Inspect tires for the correct size and air pressure.
2. Jounce the front of the vehicle.
3. Measure and record the distance between the ground and the center of the lower suspension arm rear mounting bolt head.
4. Measure and record the distance between the ground and the center of the front wheel.
5. Subtract the first measurement from the second measurement. The difference between the two measurement should be 47 mm (1.85 inches) + 3.25 mm (0.125 inches).
HEIGHT ADJUSTMENT
To adjust the vehicle height turn the torsion bar adjustment bolt CLOCKWISE to raise the vehicle and COUNTER CLOCKWISE to lower the vehicle.
CAUTION: ALWAYS raise the vehicle to the correct suspension height, NEVER lower the vehicle to obtain the correct suspension height. If the vehicle suspension height is too high, lower the vehicle below the height specification. Then raise the vehicle to the correct suspension height specification. This will insure the vehicle maintains the proper suspension height.
NOTE: If a height adjustment has been made, perform height measurement again on both sides of the vehicle.