Question about Jeep Cars & Trucks
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Posted on Jan 02, 2017
I had the same problem that based on interner research is common for Fords trcuks/suvs. The common problem fro rear humming "rubbing"sound might be the rear wheel bearings/seal. These will need to be replaced as it will progressivly get worse and the noise louder and eventually the bearings can sieze. I would hesitate to take to a ford dealer if I were you as it can run $500-900. Take to mechanic that knows how to replace wheel bearings and seals. My mechanic replaced them for about $150. and the bearing and seals are around $40. A good way to test this is to raise the wheel were you can freely spin by hand...if does not spin or there is a lot of friction then it might be the wheel bearings.
Posted on Apr 11, 2009
Spider gears are not difficult to replace...however, if they are worn, usually this contaminates the lube and can cause damage to carrier as well as pinion bearings...Those require precise settings with special tools and lots of experience to replace. Since you have had the noise for a long time, I can safely assume that debris has been building all that time. Spider gear set is not cheap...You may want to risk doing the job, but I would likely find another exact match, drum to drum replacement in a scrapyard. Generally I will only recommend a spider gear replacement if you have snapped a gear in half...an immediate failure
does not generate the kind of fine metal that wear does.
Posted on Apr 17, 2009
If you have a positraction differential, you need posi additive along with the new lube. After it's in, take it to a parking lot and make tight left turns then tight right turns to get the lube between the posi plates. That usually frees it up unless there is an actual mechanical problem in the diff.
Posted on Apr 04, 2010
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