funny sound behind me

[trapper]

in my 04 F-150 i keep getting a funny screeching noise thought it was my bad back breaks and since i changed them i keep hearing a weird sound only when i take off on a hard acceleration but stops moments after

 

[Diesel_brad]

You might get more responce in the gasser section

 

[93iditurbo]

may be a u-joint

 

[Alex S]

if its a fast squeek (sounds faster then then the tire rotation) then its a u-joint

 

[flatlander]

Usually a funny sound behind me is followed by a bad smell. Happens all the time, but Amy doesn't think it's very funny.

 

[dmaxjoe]

If no fowl smell then I would say u-joint

 

[HammerDown]

The funny noise behind me (besides my farts) was a failing carrier bearing.
I just replaced it yesterday.

 

[Black dawg]

if the joints check out, squirt some silicone spray on the t-case out put seal.