[Ed VanderVeen]

Rotors are pretty cheap to replace if needed. Changing the brakes is quite easy in my opinion. On a Saturday (all day project), I replaced all 4 rotors, rebuilt all 4 calipers (with guidence from the Pelican tech. artical), replaced the brake lines with steel braided ones, replace pads, & bled the system. Of course I had all my parts in advance which made it much easier AND I had all the necessary tools. Like Emission said, changing 911 brakes is easier then any other make I have done. Now, I'm speaking about my '75 model. I assume the '90 model is just as easy (or close to it).