[Ron Sutton]

Originally Posted by Ron in SoCal

Hey Ron,

To the best of my knowledge there are three C5/C6 hubs: the standard C6, the Z06 which LG Motorsports sells with the larger rear bearing and the ZR1 which I believe is still only available at the dealer. I could be wrong, but as far as I can tell the ZR1 is the same as the Z06 with the exception of the ABS sensor and inner spline count. Do you know if the load rating is any different for these hubs?

Hey Ron,

Yes, in that bearing you're referring to, the outer bearing is larger than the inner bearing & it is stronger. This makes the hub rated higher overall. But the weakest bearing is always the bearing that fails, regardless if it's on the inside or outside. The small one in the Z51 bearing is the same size as before, rated at 1060#.

As I mentioned in a previous thread, the bearing engineer I work with said this bearing will wear quicker than the big bearing stuff we're used to racing. So if you check the wheel/hub play & it starts to show excessive, simply replace it. If that happens often, then maybe you need a stronger spindle/bearing/hub assembly. If not, you're probably fine.