Rear of truck noise - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-16-2010, 01:22 PM Thread Starter
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Rear of truck noise

I know I have heard this sound in ambulances before, and they do it all the time but I never noticed it in my truck until a month ago. The rear end makes a noise, just a constant noise. Sounds like a hum or a low pitched sound. It drives just fine so I dont know what it could be. I changed the fluid at about 206k and everything was perfect.

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post #2 of 2 Old 11-22-2010, 10:54 AM
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I'll take a crack at this. I would guess that your rear differential needs set up again. If the ring and pinion clearance or backlash adjustment are out of spec you can get some unusual noises. It could also be carrier or pinion bearings. Last thing I could think of is a damaged or worn out gear set.

99 F250 Super Duty Crew Cab 7.3 Powerstroke
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