95 honda driving 75 mph, transmission drops to 2nd gear, now it only has first and second.

Check for codes. You may luck out and find it's only a bad Vehicle Speed Sensor (VSS), located on top of the transmission and close to the firewall. After you solve the problem, drain and refill the ATX with 3 quarts of ATF Z-1. Do this every 30,000 miles, after the ATX reaches normal operating temperature.