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Rear end noise

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Old 04-13-2013, 09:02 PM
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CRF1966 CRF1966 is offline
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Rear end noise

My wife has a 2010 F150 Supercrew with 77000 miles and I have noticed a Howling noise coming from the rear end when the truck is coasting at hwy speeds, going down hills or when you let off the gas and start coasting. Has anyone else had this issues. I thought it was the tires at first because they were due for replacement, got new tires noise still there. Any thoughts on this?
2002 F250 SB CC Lariat 4X4 7.3L / MODS- Magna Flow 4" exhaust turbo back, 6637, CCV Mod, Auto Meter Gauges Pyro, EGT's. Boost, DP Tuner F6,Tunes; Hi Idle 1100rpm, 80 Econo, 120 Race, 20, 40, 60, 80 HP Tow and Drive-Thru Tune.

Last edited by CRF1966; 04-13-2013 at 09:04 PM. Reason: Forgot to put mileage
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Old 04-16-2013, 12:33 PM
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Skoiv Skoiv is offline
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My 2000 Expedition did the same exact thing at about the same mileage. It howled while coasting but not under power. It turned out to be the pinion seal and bearings in the rear end. I spent $750 bucks to fix it it. After the fix I went for 130K trouble free miles with the new seal and new bearings.
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Old 04-17-2013, 09:01 AM
SnakeOiler SnakeOiler is offline
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Had the same problem on a 05 150. Solution was pinion seal and bearings. $900 in 09.
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