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Old 06-07-2011, 07:33 PM   #1
Join Date: Feb 2010
Location: So. Calif.
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Rear-end Whine?

Have a 2003 Wrangler Sport, automatic with just under 70,000 miles. Am hearing a whine at 40-45 mph, then it gets quiet until I near 60-70 mph. I'm guessing it's coming from the rear-end. Anybody have an opinion or suggestions? Is replacing, or repairing the rear-end a big-deal, like expensive?

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Old 06-07-2011, 07:40 PM   #2
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An audible whine from the rear end is typically from the ring & pinion gears. If the ring & pinion gears are bad, they can be replaced for $600 including all parts and labor. No need to replace the entire rear end. Could just be bearings too but the whine sound makes me think more gears.

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Old 06-07-2011, 08:06 PM   #4
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Have the diff fluids ever been replaced? Some whine is to be expected, and old fluid can make it worse. Either way I would pop the diff cover to make sure it's not something worse.
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Old 06-07-2011, 09:54 PM   #5
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I doubt if the fluids have been replaced, but I have only owned it a short time and so far have replaced tires, shocks, and steering stabilizer. Love the Jeep! I will have the fluids replaced,BUT, if that is not the problem, how long can I drive it like this? I really don't have the $600 to spare, unless it is something that may go out soon.
I'd like to thank you all for you input, it has been very helpful.
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Old 06-07-2011, 10:11 PM   #6
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I was underneath my jeep trying to find this annoying squeak when I eyeballed the fill plug on my d35. Dam... I don't remember the last time I had the fluid replaced in this thing it was almost dry, I did have a little gear noise or something like that but did not think much of it. Anyways, I did not have time to do any work on it so I just picked up one of those bottle pumps at napa and some diff fluid and topped it off. I finally got around to popping the cover, cleaning and adding new fluids. Jeep seems to have less drag now and quite considering it actually is full of diff fluid just my story.... Good luck

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