Planning on doing some work on your wheel axle or bearing? Any time you spend time replacing or servicing your wheel bearings it's important to replace all of the parts that can wear down keeping your system safe from internal corrosion. Kryptonite's Inner Spindle O-Ring is a direct replacement for your GM truck's O-Ring but it comes with the Kryptonite quality you are used to. If you are spending your hard earned paycheck on making your truck the ride you always wanted, make sure to protect it with with Kryptonite!