Hi Everybody,

Before I start this post I want to mention that I also posted this on the ForCBodiesOnly or FCBO forum as well. I’m trying to help out my stepdad here with the rearend in his ‘67 Fury with a 440 stroker and 3.23 sure-grip 8 3/4. The rearend keeps making a humming noise and gets worse the more you drive it at anything over 25mph. The pumpkin was rebuilt 3 times, this past time being built by a race shop next to my stepdads friends shop with new fluid put in each time. New stock tapered axle bearings were also put in too, and the car was jacked up and put in drive to precisely hear where the noise is coming from and nothing was heard. My stepdad is fed up with this car again as he always is, so I figured I would see what everyone else thinks is wrong with it.

Any tips are greatly appreciated.

Thanks in advance.