My best suggestion would be to check on here and talk to someone about the brushes you need. The part number is P/N 10-030-03 Brushes and you can disassemble your blender and measure the brushes for replacement. I do not think that Blendtec is carrying replacement for them. Good Luck and I hope this helps.
According to their manual, you're to stupid to work on their product, thus you can't find parts for it. Their contact information is here: http://www.scribd.com/doc/23306495/Total...
or call them and let them know how you feel about their policy, they do have a three year warranty for their incredibly over priced machine:
FOR QUESTIONS REGARDING THIS WARRANTY
CONTACT CUSTOMER SERVICE AT
(800) 253-6383 OR (801) 222-0888.