Question about 1997 Ford Expedition

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97 ford expedition 4x4

My 97 ford expedition 4x4 rear differential makes a winding noise.can this be fixed or should i buy a used one.Thank's

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  • corkterry Feb 15, 2009

    it is the ring & pinion gear than due to the winding noise going away when i let of of the gas.how hard is it to replace as i have been working on trucks all of my life but never did this job.my expedition axle door tag reads H 9 is this 3.55 ratio.there is not a tag on differential that shows that.the only tag has 5 w 140 and that i think is the oil weight.

  • Anonymous Mar 12, 2014

    which is cylinder number 5 on a 2000 ford expedition 4x4

  • Anonymous Mar 13, 2014

    common prblems with ecu unit on 97 ford expedition

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Does the whinning noise decrease or go away when u decelarate? this is the key to a proper diagnosis. if it does, then your problem eather ring & pinion gears or related bearings (these are all in the center part of the diff.) if it does not change,the problem is in the wheel bearings, or rough tread on the tires. the former is expensive(4 or 5 hundred), the latter is not so bad(a hundred or so). u could try raising it up & supporting it under axel housing, have a friend run it up to about 40mph as u listen with a hose or stethescope to pinpoint the noise

Posted on Feb 15, 2009

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97 ford 4x4 expedition rear differential makes a winding noise


Yes this can be fixed. Sounds like your spider gears have decided to cause you problems. If you can't do the repairs yourself take it to a good gear shop. They can replace the shims and or bearings. Do not attempt this if you know nothing about setting up gears. Don't waste your money by purchasing a used differential. Like I said a good gear shop can do this for you. Shouldn't cost to much.

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