here is traxxas reply to me ..
If the bearings are worn you need to replace them The rebuild kit for the Velineon 3500 motor is part 3352. It includes the bearings and spacers for the motor. The rotor is part 3353.
The fastest and usually the least expensive way to order parts is to go through your local hobby shop. You can find your nearest Traxxas dealer at this link! http://www.traxxas.com/support/dealerlocator
If you do not have access to a local hobby shop it may be easier for
you to order directly from Traxxas at our online store. www.buytraxxas.com.
If the motor cannot be rebuilt you can send it in for replacement (remove the pinion gear and any hardware) so long as you are in the US or canada. We request that you send your VXL-3s speed control in for inspection as well in case it was damaged when the motor failed.
There is no specific warranty that covers motors but we can repair or replace it for a repair charge of $35 for the Velineon 3500 motor and
$50 for the ESC plus $5 shipping within the US. Shipping to Canada, Alaska, Puerto Rico and Hawaii is $15.00.
If you have not already registered your vehicle on our web site, please do so at http://traxxas.com/node/34741
Once you have registered respond to this e-mail with the vehicles serial number your name, phone number, address and your Zip code. I will generate an RMA number for you to send it in.
Here is the service and repair information.. http://traxxas.com/node/23141 ""
btw .. this is my 2nd experience with traxxas support the first was right after I spent 700$ on a new Erevo
and opened the box and first run found tires badly warped due to very lousy glue job. and guess what traxxas support on the phone did nothing .. they just brushed me off !!! and now this
do they really expect me to spend 35 + 30 shipping back n forth to get the same low quality product that doesn't even come with warranty.
way to go traxxas