Roadsafe Caster Correction BushingsIf you are lifting your 4WD more than 1” then you need to seriously consider the change you are making on thecaster. As you lift up your truck. you need to increase the caster and avoid that ‘wandering’ feeling.Upon fitment you will immediately notice a change in your vehicle resulting in more precise steering andminimised risk of tyre vibration. A variety of different options are available depending upon your lift and what‘feel’ you want in your truck. There is not much difference in the ‘feel’ with fitting either W81730 or S0499R.Both bushings offer 2deg caster correction. and are voided to enable flexing and preventing bind up. You will findW81730E will give you a firmer feel. as these urethane bushings are not voided. W81730X is designed for the biglifts and offer 3deg caster correction