JACKING & HOISTING
Note. Before performing wheel alignment, perform preliminary visual and mechanical inspection of wheels, tires and suspension components. See PRE-ALIGNMENT INSTRUCTIONS in WHEEL ALIGNMENT THEORY/OPERATION article in GENERAL INFORMATION.
Put floor jack or vehicle hoist under vehicle at proper lifting points. (Scheme 3) If raising vehicle on a twin-post hoist, do not damage suspension components, rear axle cover, or steering linkage.
Scheme 3
RIDING HEIGHT
Note. Proper riding height is necessary for correct wheel alignment. Before measuring riding height, ensure tire inflation pressure is correct, cargo compartment is empty, and fuel tank is full.
Bounce vehicle several times to normalize suspension. Measure riding height. (Scheme 4)and (Scheme 5). If riding height is not as specified, repair or replace suspension components as necessary. See RIDING HEIGHT SPECIFICATIONS table. If riding height is okay, align wheels. See WHEEL ALIGNMENT PROCEDURES.
Scheme 4
Scheme 5
| Application | In. (mm) | |
|---|---|---|
| 2WD | 3.5-4.0 (89-101) | |
| 4WD | ||
| K1 & K2 | 5.9-6.4 (151-163) | |
| "K" & K3 | 5.5-5.9 (139-151) | |
RIDING HEIGHT SPECIFICATIONS
Frame Angle
- Position vehicle on smooth, level surface. Using inclinometer or bubble protractor, measure frame angle. Determine if frame angle is up-in-rear or down-in-rear.
- To determine corrected caster reading with various frame angles and caster readings apply one of the following rules: Down-in-rear frame angle must be subtracted from a positive caster reading. Up-in-rear frame angle must be added to a positive caster reading. Down-in-rear frame angle must be added to a negative caster reading. Up-in-rear frame angle must be subtracted from a negative caster reading.
If corrected caster is not within specification, adjust caster to specified setting.