The drivers side lower control arm bracket rusted off. The other one was close behind so just bought a whole new rear axle from down south. Found one with only 127k miles on it. Swapped in my brakes and all good now.
80 Series Rear Differential 3rd Member *locking version*. Only 143k miles. This was removed from our 1994 daily driven truck. No noise or vibration. Only removed because we replaced the whole rear axle housing assembly. Does not include the locking actuator motor. Asking $400.00