need some one's advice

[jamesallard]

i have an 07' ranger 4x4 with a loud howling noise in the rear end all the bearings are fine and u-joints are to i took it all apart and put it back together and the noise is still there does any one have an idea on what could be wrong. send me a private message if you could thank you.

 

[Ranger Al]

Try draining your gear oil and replace it with thicker oil and add friction modifier.

 

[my pos mounty]

Did you check the pinion shaft bearings?