This ring gear looks defective to me - Ford Powerstroke Diesel Forum
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Old 04-24-2012, 04:47 PM
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This ring gear looks defective to me

Got the truck up on a lift to put the TrueTrac in the rear and this is what we found. Decided to put it back together and have Ford service take a look before we go tearing into it.

This ring gear looks defective to me.

Survey says?
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This ring gear looks defective to me-ringgear2.jpg   This ring gear looks defective to me-ringgear.jpg  
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Old 04-24-2012, 05:17 PM
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Doubt it would ever cause a problem. Seems pretty consistent. I'd check the pinion gear.
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Old 04-24-2012, 06:22 PM
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There is definitely a problem with that ring gear. It should not have any of those marks in it. Those marks will also make it noisy. I would take it back to Ford also.
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Old 04-24-2012, 07:20 PM
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I'll be honest if there's no parts laying in the bottom and there is no noise concern then I wouldn't worry too much about it. It is going to be hard to get a warranty claim through based on that complaint alone.

The contact area should be in the middle of the tooth, not so much where near the edge where those marks are. You wouldn't even know they were there if you hadn't opened it up, correct?
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Old 04-24-2012, 07:30 PM
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Why wouldn't it be cause for concern? Those damage marks show defects in the material. There could possibly be micro cracks coming from the visible damage that could eventually lead to catastrophic failure of that ring gear causing even more damge and cost. Personally, after paying what you did for a brand new truck, I'd have it checked out. Any defect found should be covered under the 3 year 36k miles bumper to bumper.
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Old 04-24-2012, 08:57 PM
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No, I would not have known it was a problem unless I'd opened it up.

On the other hand, I've had a ring gear chip right there in the past. Sounded like a wounded animal and we left it (a bunch of us were headed to FL.) Picked it up on the way home. Ended it's trip and that sucked.

At this point, regardless of what ford says, a new ring gear is going in with the New TrueTrac, maybe at my expense...being left behind sux.
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Old 04-24-2012, 09:37 PM
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Ford isn't gonna warranty it unless its broken.
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Old 04-25-2012, 06:34 AM
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Just got off the phone with Ford. They will warranty this. They will NOT put the truetrac at the same time. WTF?

The truck has to be there for them to order parts. WTF? So it has to sit a week instead of a day. D'oh
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Old 04-25-2012, 01:00 PM
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That's surprising. Glad to hear they are replacing it for free.
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Old 04-25-2012, 02:28 PM
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I sure hope mine doesn't look like that, but good to hear Ford's replacing it.

As for them installing your TrueTrac, I'm not at all surprised. That's a real stretch to ask the OEM to install aftermarket parts as part of a warranty service IMHO. I'd see if you can pay the dealer on the side to it while it's apart, but I kinda doubt it unless you're on really good terms. It would compromise his warranty approvals/work with Ford and most aren't willing to do that.
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