 Leased a 2014 F150 STX supercab in white with sharp rims, I like the look and I do love driving it.  Was considering buying it at the end of the lease due to the low miles I have on it but have had some issues which concerns me with the reliability.  The first happened around 7K miles.   Intermittent noise, sounded likes marbles in a jar.   There is apparently an issue with these truckswhere the vacuum line or the solenoid fails (moisture related) and it tries to pull the hub in while the truck is moving basically shredding the gear teeth.   Fixed and ran fine until 2 days ago when driving began hearing a grinding hum coming from the front.   Was worried driving would cause more damage or the truck would stop running.   Had to have a truck with 13K towed.   They believe it is a bearing in the front drive train.   All I know 2 days without a vehicle, not happy.