Subaru XT Workshop Manuals
If you choose to do fixes on your own Subaru XT then it is always a good idea to have access to a Workshop Manual to use as personal reference if perhaps you want to know methods to strip off a specific part like the Drive Shaft and fit it again appropriately.
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Subaru XT Workshop Manuals can offer you specific diagnostic guides for your car so if something is broken it will help you figure out what the issue is and how you can make it better. You can then evaluate if this can be done by yourself or that the job is just too big you can still make a booking for your XT in with a trusted car garage.