Question about 2001 Jeep Grand Cherokee
We replaced driversside axle cause the boot was ripped, drivers side wheel bearing cause it was bad, track bar cause bushings were bad and I still have a loud helicopter sound coming from the front end. it gets louder the faster I go and if I slightly turn the wheel either way it gets a little quieter. Please help its an all wheel drive quad dr.thank you. I want to do the work myself.
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Posted on Jan 02, 2017
if it shakes over 50 miles per hour, it could be your front tires need balancing. and check your ball joints while you are at it. or king pins if it has that. (they are different from ball joints but serve the same purpose.)
Posted on May 14, 2010
You also could have received a bad axle. Sometimes the rebuilds don't hold good tolerance and can make the same noise you are trying to get rid of. Is it full-time 4wd? Maybe the driveshaft ujoint also.
Posted on May 19, 2009
the bearing does not always have to be really bad for the seal to fail. Centrifugal force will throw axle grease outward where it gets on the rotor. That can make it feel like the rotor is out of round. If grease got on the brake pads I'd replace them and perhaps even the rotor. As far as the caliper being frozen, possible....check it out when you have it apart. You can have more than one shoe untied at the same time. Not always, but it can happen.
When replacing the seal make sure you put some grease on the lip before putting the axle back in. by doing that it won't fail from dry running before the diff lube reaches it.
Posted on May 21, 2010
SOURCE: My 1995 jeep grand cherokee
Likely then the tech was wrong and some damage has occurred.
(sometimes it's hard to see) Gear sets are expensive and so are bearings. Only people with the proper tools and experience should attempt a rebuild.
Most often you can find a good used unit end to end in a scrapyard for under $200. (I haven't paid more than $125 for any I have gotten lately). You can put your new axles and hub bearings on the new unit or save them for spares.
One very important thing is to exactly match the gear ratio of the one you are replacing. There should be a tag on the diff cover or you can count the ring gear teeth and divide by pinion tooth count to get that #. Some are also stamped on the edge of the ring gear as well. It takes about a day for an average person (with a helper) to remove and install one on the ground providing you have decent tools, jacks and a bit of experience. Far less time on a lift with power tools.
Posted on Oct 31, 2010
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