Yet another Rear End Noise Thread
02-02-2010, 02:16 PM
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Yet another Rear End Noise Thread
I've searched the forums but have not been able to find any help so I'm starting yet another thread from a new guy....
I have a 2001 Supercrew 4x4 with the 5.4 and a 9.75" rear axle. The truck has 190k miles on it. For a while now it's been making a cycling wooshing / rubbing / churning sound from the rear end (not a howl or squeal). Sounds like tire noise but rotating the tires does not help. It doesn't matter if the truck is accelerating, decelerating, in gear or neutral, but it varies with the speed of the truck. The noise is there when going straight or turning right, but seems to diminish when turning left. I changed the U-Joint at the diff and I've replaced both axle bearings and seals. Then filled it all back up with Royal Purple. The sound may have gotten quieter but is still present. This may just be something I have to learn to live with but I would really like to know what the problem is and how serious it is. Thanks for any help....
I have a 2001 Supercrew 4x4 with the 5.4 and a 9.75" rear axle. The truck has 190k miles on it. For a while now it's been making a cycling wooshing / rubbing / churning sound from the rear end (not a howl or squeal). Sounds like tire noise but rotating the tires does not help. It doesn't matter if the truck is accelerating, decelerating, in gear or neutral, but it varies with the speed of the truck. The noise is there when going straight or turning right, but seems to diminish when turning left. I changed the U-Joint at the diff and I've replaced both axle bearings and seals. Then filled it all back up with Royal Purple. The sound may have gotten quieter but is still present. This may just be something I have to learn to live with but I would really like to know what the problem is and how serious it is. Thanks for any help....
Last edited by ML190; 02-02-2010 at 03:11 PM.
02-03-2010, 05:50 PM
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When I pulled the rotors off the rear end the parking brake mechanism on both sides appeared to be OK. There were no grooves or loose or missing parts. Tomorrow I'll pull the wheels / rotors and check again in case I missed something. Really getting tired of listening to this.
