Curb Height Measurement

Fig 1: CURB HEIGHT MEASUREMENT

Courtesy of DAIMLERCHRYSLER CORP.

The wheel alignment is to be checked and all alignment adjustments made with the vehicle at its required curb height specification.

Vehicle height is to be checked with the vehicle on a flat, level surface, preferably a vehicle alignment rack. The tires are to be inflated to the recommended pressure. All tires are to be the same size as standard equipment. Vehicle height is checked with the fuel tank full of fuel, and no passenger or luggage compartment load.

Vehicle height is not adjustable. If the measurement is not within specifications, inspect the vehicle for bent or weak suspension components. Compare the parts tag on the suspect coil spring(s) to the parts book and the vehicle sales code, checking for a match. Once removed from the vehicle, compare the coil spring height to a correct new or known good coil spring. The heights should vary if the suspect spring is weak.

Fig 2: CURB HEIGHT MEASUREMENT

Courtesy of DAIMLERCHRYSLER CORP.

Measure curb height at each wheel opening as follows:

1. Jounce the vehicle. Refer to above NOTE.
2. Measure (1) from the bottom inboard edge of the wheel opening fender lip directly above the wheel center (spindle) down to the floor (ground) or alignment rack surface.
3. When measuring, maximum left-to-right differential is not to exceed 10 mm (0.39 in.).
4. Compare the measurements to specifications listed in the following CURB HEIGHT SPECIFICATIONS chart.
5. If curb height is found to be out of specification and there is no sign of excessive body damage, curb height can be changed by replacing the applicable spring with a spring offering a different check load. (Refer to SUSPENSION/FRONT/STRUT - REMOVAL)  or (Refer to SUSPENSION/REAR/SPRING - REMOVAL) .