With Celica's most of what they say is applicable, also how many miles on the car, have you changed ALL the fluids in it?

All-Trac's are good cars all around and they can take a decent amount of abuse but if you push it too hard broken All-Trac's aren't easy to fix.

Good luck with your new car, I'm kinda tires so I didn't get into it much, hit me up on AIM sometime and I'll let you know some more there.

Also, you got any pics? I <3 the All-Trac and wish they had made a 6th gen GT-4 *sigh*