I was looking for incidences of flex fans coming apart there were a bunch,way more than I would have believed or expected. But I stumbled across this little nugget of joy that I told someone on here I try to find. The actual horse power difference between an electric fan and a clutch fan aren't worth the money or effort in my opinion. But the top 2 for horsepower are 487 stock and 494 electric,and IMHO an average clutch fan and shroud will cool the truck just fine,not worth the effort and money for 7 hp which still isnt accurate because an engine dyno isn't going to have the loss from the alternator working,let alone working harder for the electric fans.