rear starting to sweak, as i go faster it sweaks faster, before i take it to dealer I thought I post it. I'm thinking rear bearings. 63k on truck changed rear dif. oil at 58k with royal purple synthetic oil. any feed back ??? tks

 

Welcome to F150online!

I'll take a guess and say that a squeaking noise that increases w/ speed might be a U-joint on its way out?

Good luck.