Cant get tranny bearing to seal

I have an awd 92 eclipse :uhoh: . I did a tranny rebuild cause the guy who had it before me was doing 6 grand neutral drops and heard a noise so he started doing 5500 because it wasnt as hard. Didnt find this out till my back wheels would spin and the front wheels wouldnt move. I was wondering if anyone had ever put a new spider gear in and if the have ever replaced the bearing in an awd tranny. I would greatly appriciate any help.
Thanks,
Colin

Please, for the love of God, post if this is an auto or manual. There are several bearings in the tranny, to which one are you refering?