Rear Axle Whine in '94 Explorer

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Randy Johnson - 01 Jan 2004 18:48 GMT

Hi there -

For the last year, I have an increasing problem with a whine from the rear
of my explorer. It sounds like it is coming from the rear axle. When you
accelerate at any speed the whine gets really loud, each month is louder. I
have had the fluid changed in the axle. It is an open differential, 3.08 (i
think). Lately, when you coast, it now has a "gear sound" - real low
pitched noise.

Is it time to have the differential reworked? I have replaced the old
Michelin ties with new ones as they wore out and have had no difference.

Any ideas?

Randy

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sf/gf - 01 Jan 2004 22:54 GMT

> Hi there -
>
[quoted text clipped - 11 lines]
>
> Randy

Does the noise change in pitch or tone when accelerating or coasting? When
in between accelerating and coasting, does the sound change? If so, problem
is most likely rear differential as you suggest. If noise does not change,
problem may only be a rear axel bearing., which is much less expensive. You
have already replace the tires so can rule that out.
SF

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Katiefitter - 05 Jan 2004 20:59 GMT

That sounds exactly like the sound that I had before I replaced the rear differential in my '97. When you drive, you're pretty much just burning it up. It cost me about $1600 to replace.

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GeorgeB280 - 10 Jan 2004 01:57 GMT

After about a hundred thousand miles the bearings in the rear end started
whining had to have them replace.

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Randy Johnson - 01 Feb 2004 21:31 GMT

Hi there -

Bit the bullet and had the rear axle checked out. The pinion bearings
were in very bad shape and all of the other bearings had lots of wear. The
rear axle must have been run dry or too much slop in factory assembly. All
is better now for the sum of $750.00

Thanks for the help,

Randy

> After about a hundred thousand miles the bearings in the rear end started
> whining had to have them replace.

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Racin' Fan - 02 Feb 2004 00:59 GMT

My rear end has started whining too. After 192,000 miles. I'm fed up with
Ford's unreliability and crappy workmanship. :>) Off to the shop this
week. Hope it doesn't cost $750.

Fifth gear started whining in the manual transmission last year. I guess
getting close to 200,000 miles is tough on bearings. No telling how many
revolutions those bearings have made. I'd be worn out too.

> Hi there -
>
[quoted text clipped - 9 lines]
> > After about a hundred thousand miles the bearings in the rear end started
> > whining had to have them replace.

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