Wilwood Adapter Rotor/Hat Register Ring 2.17in Dia.
$37.99
Rotor and Hat Register Adapters are used to locate 1 piece iron rotors and aluminum hat assemblies to vehicle specific hub or axle registers. Available in size ranges from 2.00a*? to 2.88a*? internal diameter. Requires 3.06a*? center hole with counter bore for installation into hat or rotor.