If you have the stock radiator/trans cooler installed and don't have an inline transmission fluid filter you may have some blockage in your cooler. The early years of these cars had a mesh in the coolers that (accidentally) acted like a filter for clutch materials. That's why in 1993 they added an inline filter in the area of the line just under the battery. It is attached to the frame (if you have a Subaru one that is) with a spring clamp. I was told the filters are supposed to be changed every 30,000 miles.

By the way, I see your mileage at 74,000 and am wondering if you have had the timing belt changed yet. That's a 60,000 mile routine. Although I know one member who has gone over 200,000 miles before changing his (care to comment on that one Doug? )