[NiftySVX]

The bearings are set up exactly the same on the rear wheels in AWD vs FWD, there is just a "stub" axle in the rear on the FWD models. There isn't anywhere to drill a hole to get access to the inside of the bearing. It might help, unfortunatly, it is impossible. You could take out the stub axle and the seal, and then the inboard inner race would be visible and you could try and pack some grease in there, so it is theoretically possible to re grease the bearings, but I don't know if it would help or not, you may do more damage than good. It usually seems to be the outboard bearing set that wears anyway.