1995 F53 Fan Clutch - defective Ford parts?

Thanks everyone for the replies. I have heard that is was best to stay with the OEM fan clutch but 2 duds in a row has me wondering. I was hoping someone else had experience with the particular Ford part I am dealing with. Yes, Ford will replace it for free but as someone pointed out that is not a viable solution if they keep failing. I have heard from several local mechanics and parts people that fan clutches in general (after markets in particular) on all types of vehicles have been very problematic the last 5-10 years. It sounds like quite a few people have had luck with the Hayden 2799. I am probably going to try that next. BTW, the Ford part costed $228 - the Hayden: $60. I have had my 460 F53 for 5 years and put on over 40,000 miles (have done many of the upgrades - rebuilt transmission, Banks, steering stabilization etc. along with the required fixes fuel pump, rear bushings ...). It has been a very strong runner and I have been quite happy with it. It is now approaching 90,000 miles. Once I get this fan clutch issue resolved I confident it will run for another 50,000 - 100,000. Thanks again!