nikhsub1
FRF Addict
To be fair this is a semi common issue around here, that's how I was pretty sure that was his issue. Ford definitely has a pinion bearing issue with early failures.Did you buy it new? Stock ride height? It’s a 6 year old truck at this point if it was purchased in 2017. Time is a factor in addition to mileage. If it was set up improperly it would have whined from day one.