The ICON On-Vehicle Uniball Replacement Tool Kit?comes complete with everything necessary to service uniballs in ICON upper control arms, as well as other control arms that utilize a 1" uniball. The design of this kit allows for the job to be performed?with the control arm still on the vehicle, minimizing the work and time involved with this task. Because a hydraulic press is not required?when using this kit, safety is improved while the chance of permanent damage to the control arm is reduced. Verifying alignment of tool components is critical prior to pressing uniball in or out. Damage to tool kit components or the control arm is possible if care is not taken.