Many (if not most) of the OLD manual transmissions were the same way. The cluster gear splashes the lube around, and the cluster gear is in constant mesh with the input shaft, so it only turns when the engine is running.
Subaru, however, is a front wheel drive transaxle modified for All Wheel Drive.
I have owned a couple of Outbacks, the wagon and the sedan, and they both said in the book that the manual transmission version was towable four down. NO Subaru can be dolly towed. The automatic transmission models must be put on a trailer.
