My front wheel bearing went out making the abs light come on for a little while thus shutting off the abs. Well that ruined the front tires and caused a few small flat spots in the tread in a few areas. Threw the tires out of balance I guess. Decided to rotate them to the back instead of just biting the bullet and replacing the tires. Now the rear end hums even after a new set of tires. Only thing I could see it doing was wearing out the rear wheel bearings. Anyways, after a few miles once the rear differential gets good and warmed up it starts humming a bit more than id like above 55-60mph. This is a 11.5aam on my dodge ram cummins. I dont notice any looseness checking the rear tires. Im at 255,000 miles running amsoil since new changed every 50k. It still looks like a nice golden honey color without any chunks on the magnet opinions? Just replaced the ujoints too. Opinions?

 

Rotate the tires and see if it is the same. Even new tires can suck...

 

I took the jetski out today and gave it a good listen on the way home. Something about driving a different vehicle with different noises kind of resets your hearing if that makes sense. I think think half the noise is the front tires/wheel bearings and or both. Wonder if it would be worthwhile to just put 4 new good quality wheel bearings all the way around on this truck. At 255,000 miles only one has been replaced and that was a Moog that I swear is making noise again 50k miles later

 

I noticed my $900 pair of michelins on the back werent balanced right. They have wheel weighted on seperate areas of the rim on one side. Its been about 15 years since I took an automotive class but it was my understanding this is incorrect, but it's doubt thats enough to cause the humming