[mustanggt_50]

I have that problem also... My rotors arent in the best of shape (warped) and need to be replaced, and thats causing my shake. Yours could be the same. Try looking at yours and you should be able to tell if they have problems. Also my rotor damage is on the inside of the rotors, not the outside facing side!! Look them over well!

I noticed yours said at high speeds all the time... I also have a bent rim on mine which causes some shake!! Could be like that with yours too! Sorry, I shoulda read better and I would have seen it wasnt just when braking!