A preload collar for a vehicle spring is described. The preload collar is coupled to the shock absorber of a vehicle so that the lower end of the vehicle spring is pressing against the preload collar. The preload collar does not allow the lower end of the vehicle spring to extend toward the ground, or toward the lower end of the shock absorber, as much as it normally would. This pre-loading of the vehicle spring provides suspension lift to the vehicle.

DEVICE FOR CAMBER ANGLE CORRECTION refers to a device's constructive setting for the correction of camber angle in automotive vehicles that can be used in various types of suspension and not just the MacPherson ones, increasing its possibilities of application and turning it universal. Said device comprises a hydraulic pump, which hose is connected to a positive and negative action hydraulic cylinder (11), and said hydraulic pump has directional valve, and the hydraulic piston (11) provides also a hub (12) for a support base near the end of the rod movement of said hydraulic piston (11). This said support base can be a straight support base (20) fixed at the wheel hub, or a curved auxiliary support base (30) fixed in the vehicle's shaft sleeve; and the rod tip of the hydraulic piston (11) should be attached on a fixing bracket (40) which in turn is fitted around the car's suspension column.