Unfortunately we cannot repair motors, we can only replace them. Since it is a discontinued product, we do not have them in stock so we cannot replace them. The bearings are dual shielded and sealed so they do not require any maintenance; they are called lifetime bearings. Replacing the bearings would require a bearing puller to remove the old bearing and a bearing press to get the new bearing seated. These are some of the best long life bearings available for these motors; ceramic bearings can't handle the sideload that's put on them and will fail easily.
Can they replace the motor with something similar? I am not expecting to have any trouble with my motor since its only pushing an E-Maxx around but, it would be nice to have some kind of peace of mind.
When a seller lists an item as a close out sale item this means no replacement under warranty or any condition, period. If you want to replace the motor you have to purchase a new one.