Just a public service announcement!
If you are going to buy Doctor Diff's or any serious brake kit, please get the NON-DRILLED rotor option.
Its free and the rotor has more material to effectively act as a heat sink.
Many people just don't understand that unless cast with holes, drilled rotors are just going to crack faster at higher temps

reference: Trouble Shooting Brake Procedures
#5. Why do brake rotors crack?
http://www.ctbrakes.com/faqs.asp


Thanks for the rotors Cass!
Hopefully the Fedex guys that lost the 4th one stub their toe on it