2008 Polaris Ranger RZR Service Manual, Page 64Get this manual
ENGINE 35Remove the through-bolt that attaches the upper A-arm to the rear hub on both sides of the vehicle38Disconnect the engine coolant temperature (ECT) sensor harness
ECT Connector
36Pivot the A-arms upward and rear hub carriers downward and remove the drive shafts from the hub carriers39Loosen the hose clamp and remove the lower coolant hose from the water pump cover inlet and drain coolant into suitable container
Hub Carrier