my engine went at 220,000 miles and it had the beehive filter. Other factors like the climate, thermostat's condition, the coolant's condition, and the radiator's condition also come into play.

Since I cannot attach messages the the >>Drive shaft link<< that I started, could some one help me with:

On my '83 rx-7 with a live rear axle, the drive shaft hits the e-brake cable bracket when I go over bumps with an extra 100 pounds in the passenger seat. Everything looks aligned, rear suspension bushings were OK, replaced shocks and springs, U joint, and drive shaft. Is there anything I should be aware of before loosening the nuts securing the transmission rear?

Yahoo RX-7 group members tend to think that I should replace all the rear suspension bushings.