Hyundai Elantra is not an independent suspension. Four-wheel alignment can only be the front wheel, and the rear beam cannot be adjusted. How to solve the rear wheel figure eight? The rear axle cannot be adjusted. how
For torsion beam suspension, washers or the like are usually used to adjust the parameters. . . Some torsion beams are really completely unadjustable. . Like old Fit. If you want to change the parameters, you can only change or cut and re-weld. . .
PS: For some guys with independent suspension, in order not to affect the jump geometry, they will also use gaskets for some tuning parameters.