Looking for Opionions Rear End Whine and the Dealers Reason / Excuse - Ford Powerstroke Diesel Forum
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Old 07-08-2010, 09:46 AM
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Looking for Opionions Rear End Whine and the Dealers Reason / Excuse

First I will start by saying I love my truck even with some small querky problems.

About 7 months ago I took my truck into the dealer because of some rear end whine and they replaced the gear for be for free as the truck had just run out of warranty. An important note, at that time my truck was completely stock.

About a month ago my rear end started to whine again at 40 MPH or so. I took the truck in last week and they readjusted the lash and pinion depth and they said it was perfect. They documented that it had a heal toe condition on their report.

The rear end is still whining, maybe even worse than before, and they say that it is resonation from my exhaust. Since I had the problem last time I installed a DPF Delete and Banks DPF Back Exhaust. The dealer is a chevy dealer where i bought the truck so they don't care about the DPF off.

I guess my questions are does this resonating reason sound feasible? If so can i get rid of it?


I somewhat think the issue is that the gear has worn bad and the adjustment is now different and wearing different. Is this feasible? Will the gear work it's way in? The last setup only had about 8k on it before it was reset.

Help, what other options do I have I don't have the stock DPF back exhaust as I cut it off when I installed my Banks version.
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Old 08-04-2010, 08:38 PM
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no if you have any gear noise that means the gears are junk the took a bad wear pattern and will never stop whining. bad gears are bad gears.. go to a good shop that has a good rep on gear work they will tell you .
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Old 08-05-2010, 06:59 AM
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Mine is doing the same thing. I had just rotated the tires right before the whine/howl sound began. Dealer claimed my tires were feathered because of alignment issues and I was hearing road noise from the tires. I had my alignment checked at that same dealership and it was within spec. I've had the differential pinion seals replaced once and they are leaking again but not bad. It is a bad feeling when the dealer doesn't want to really help and just sends you out in the world hoping for the best.
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