> I need to replace the front seal on the diff of the TR3a. My thought is
> while I doing the seal, should I consider replacing the bearing as well?
Unless you have some reason to believe it's bad, I'd leave well enough
alone. The front bearing leads an easier life than the rear one, and even
the rear one very rarely fails. When you replace either one, you should
really check the pre-load, which takes special tools.
> Can the bearing be done while in the car like the oil seal?
It would sure be a PITA if it's possible at all. How are you going to get
ahold of it ? The usual way is to drift it out from inside, after the
carrier and pinion gears are out of the way. They can be removed with the
axle still in the car, but you're getting into some major work here,
including removing the brakes, hubs and halfshafts.
Randall
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