ring and pinion failure - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-22-2008, 11:06 PM Thread Starter
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ring and pinion failure

I have a case of shaking of my 97PS at around 70mph. The tires have been recently balanced and we replaced the rear u-joints and carrier bearing. I have inspected the tires for separation......nothing that I can see or feel. I have been using the truck on the highway to tow my gooseneck to Vegas....no place where I could have hit the driveshaft on anything. I am reaching now. Ring and pinion??? Do they always make noise when they start to fail, because I have not heard any unusual noises other than my drink holders on the center consol shaking at around 70mph. Any input will be appreciated.

1997 F250 Super Cab PS 4X4 firestone ride rite air bags, John Wood Tranny with temp gage. 1995 F250 PS 4X4 5 Speed manual tranny
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post #2 of 2 Old 11-23-2008, 12:04 AM
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No, I really doubt it. Grinding popping and tire chirping. Or mean howling and occasional horrible clunk would be ring and pinion.

Sounds like typical tire woes to me. The carcass of the tire is made of polyester fabric, and there has to be an overlap for strength. Add a whole bunch of rubber (weight) and this can make not just a heavy spot, but a harder spot. All tires as far as I know are built this way, and sometimes it makes a wobble that is very similar to out of balance. Rotate your tires, and it likely will go away. When you rotate them back, it likely will stay gone. This sort of thing is just the way tires are.

Could be a bad shock, or something loose, too. Might be worth a peek underneath.
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