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Differential problem?

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Old Oct 23, 2013 | 07:21 PM
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Differential problem?

Today I had to turn my 4 wheel drive on to get out of a big leaf pile. Engaged both manual hubs and used manual shifter and put it into 4 wheel drive. After getting free, which worked fine, I put shifter back to 2 wheel drive and unlocked the hubs. I immediately heard a grinding noise. I engaged both hubs again and still heard it. Then I turned both hubs off again, still heard noise. So I tried the reverse and forward thing a couple of times and that did nothing. I drove a little while then I heard a LOUD clank and now its a much louder noise.

Now when I try going reverse the back wheels lock up. This has me rather concerned. Why would the back wheels lock up?

Other notes worth mentioning
1. New transmission 2 years ago, only has about 25,000 miles on it. Don't think its that.
2. New manual shifter (shifter to change between 4 wheel drive and 2 wheel drive) last winter.

Is my differential broken? What could the problem be?

Thank you in advance.
 
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Old Oct 23, 2013 | 08:16 PM
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Also, truck has been in 2 wheel drive all summer pulling a 16 foot enclosed trailer and hasn't given me any problems.
 
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Old Oct 23, 2013 | 08:19 PM
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Hello Fenton Ford Trucks and welcome to FTE.

If you put the transfer case into the "N" position, do the rear wheels free up?
 
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Old Oct 23, 2013 | 09:49 PM
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truck is sitting at a repair shop. I will check tomorrow and get back to you.

I'm sensing where this is going. It's probably the transfer case and doesn't haven't anything to do with the manual locking hubs on the front wheels.

When I had the shifter repaired last winter, it worked better but still wasn't great.
 
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Old Oct 23, 2013 | 11:00 PM
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Not the rear end.
 
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Old Oct 24, 2013 | 09:30 PM
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Problem fixed! You won't believe it, lol. My mechanic called me today telling me the parking brake pad in the rear tire broke off and was grinding in the wheel. I told him what happened prior to me hearing the grinding noise and he said I must have put enough force on it when I was stuck to break it off. Unbelievable! Anyway, he checked the whole drivetrain and said everything is in good shape.

If you live north of the Twin Cities I highly recommend Isanti Tire and Auto in Isanti, MN. They are real honest and do good work.
 
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