Can you drive a 1998 Subaru Forester without rear wheels connected to driveshaft?

Answer 1

No, because AWD cars have a center differential or viscous clutch. Meaning that the front and rear driveshafts are not solidly connected to each other and if one is disconnected it will just spin freely and the car won't move forward well if at all.

PLEASE BE ADVISED THAT THE Subaru WILL DRIVE FROM ETHER END IF DRIVE SHAFTS ARE REMOVED FROM ONE DIFF BACK OR FRONT.

The Subaru does not use a centre diff so drives direct to the front but will transfer drive to the rear if the front "slips" so if you remove a shaft from the front it = "slip" so will drive to the back.Removing a shaft from the rear will not interfere with drive to the front. So be aware unless there is a shaft off both diffs &, in the case of models with limited slip rear diff, both shafts or the center shaft, it will still run over you or your mate if you put it in gear.

Life is full of surprises so lets try to keep them pleasant ones.