The bearing hanger is related to the driveshaft in some manner...so I suspect the rear hanger bearing is located near or on the u-joint connection between the driveshaft and the rear differential.
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car