'96 T100 4x4 Xtracab 5 speed 127k miles

Whenever the A/C is on my engine's fax clutch engages and the fan really makes a lot of noise and really limits the power of the engine because of all the drag. It stays engaged through all gears and all RPM ranges (even past 4k RPM's).

I assume that this is not normal and I either need to replace the fan clutch or replace the fan with 2 electric fans with thermostats? Any advice or information?