Depends entirely on use/abuse, condition of the diff and luck. I drifted a 4AGZE with T series (welded) for a few years. Diffs broke eventually (usually axles, but occasionally crownwheels). However for normal street driving it should be fine.
The strength or lack thereof of T-series diffs has been discussed a fair bit, so if you have a good dig around you'll find alot more info and experience.
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