One problem related to power train driveline has been reported for the 2004 Mazda RX8. The most recently reported issues are listed below.
The contact owns a 2004 Mazda Rx8. While driving 50 mph, the clutch pedal began squeaking. The clutch pedal brace failed and would not shift into gear at all. The dealer stated that the clutch pedal was bent, not broken and they could replace or weld the part. The failure and current mileages were 37,700.