You should run the dignostic codes for the tranny. I am assuming you have the POWER light, or something similar.
The Legacy box is very similar to the SVX one.
Check into the How-To locker in one of the posts here:
http://www.subaru-svx.net/forum/show...403#post134403
The ATSG manual I have suggests the following for your symptoms:
Valve sticking
or
Faulty forward clutch relief ball
or
Faulty overrunning clutch relief ball
or
Forward clutch slippage.
According to their chart, the first three can be checked as an On-car Check.
The last one is a Unit Check, which I presume means tranny out.
Best of luck with it.
Joe
__________________
Black Betty [Bam a Lam!] '93 UK spec, still languishing
Betty
Jersey Girl Silver '92 UK [Channel Isles] 40K
Jersey Girl @ Mersea
Candy Purple Honda Blackbird
Plum Dangerous
White X2 RVR Mitsubishi 1800GDI.
Vantastic
40,000 miles Jersey Girl