any tranny issues do forget about nasioc, they have a wealth of info on the trannys, including that eact tranny issue, just gotta read through the stickies, the also state when tsubaru switched to the ra gears. if your gears break in the 02 aa tranny and your going to rebuild, then just buy new gears through a subaru site such as subaruparts.com they only go up to the 02 tranny but all gears sold through subaru are the ra gears, the only thing is you may want to initially buy all of the gears, so that they all match up and work, but at the same rate my buddy blew a gear in his 02 aa and bought all the gears from that site, and fixed it himself. i am pretty sure the aa and ab trannys are both the same, just gears are slightly different. even the new subaru gears are not 100% too many people try to drag race these cars and the trannys are just not made for it. it is made for stock turbo and stock driving (casual driving) once you start stressing it then it will break !Notfunny! so that is where i like the 300-400 whp max, on gravel aspect. the tranny can handle rally conditions alot better then tarmac racing, smaller rims, lighter break components, less unsprung weight, and less grip all lead to less shock load which is a plus on that glass box transmission. race tires, 18" rims, huge rotors, tarmac suspension, flywheels, turbos and such will require heavy transmission upgrades/swaps, because that stuff will help you grip and make you quicker, but shock load wont agree with the gears. i know someone who rebuilt their tranny after breaking a gear, put a bunch of performance parts on, then drag raced it more, he got pretty fast times too, but his tranny only lasted i think 6 months on non subaru made aftermarket RA gears (dont recall brand but i think they were kaaz or rallispec), may have been less than 6 months, i was suprised how long it actually did lasted though.
ralley=jumping=sideways action=adrenaline rush=keep up with other ricers, and demolish them on the gravelway more fun
drag racing=fast=11-14 second=shortlived if any adrenaline=knowing you can beat alot of suped up cars= broken tranny and lots of expensive aftermarket parts=still pretty fun