I have a clunk when I give it gas then let off quick, no noise any other time. Noise is coming from the right rear, just replaced the right axle bearing & seal, no change in noise.
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A grinding noise suggests a bearing at fault or perhaps worn pads on the brake rotor.
However, the clunking noise you mention could also point to a problem with the drive shaft or differential.
The first thing you should do is to get under the vehicle and try twisting the propshaft back and forth. If there's any movement this points towards a worn universal joint on the propshaft. A worn universal joint can cause a clunking noise - particularly when pulling away. The vibration caused by a worn universal joint can also damage bearings in the differential and also to the splined ends of the axle shaft.
You're also going to have to remove the wheel from where the noise comes from and examine the end of the axle shaft/bearing.
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you have a seal leak causing the differential oil to get onto the rear brakes shoes.what is happening is the brakes grab the drum and shift until they can`t move(turn)any more causing the clunking noise.the groove in the axle if it is bad enough then it will need a axle sleeve installed which gives the axle were the groove is a smooth surface,it is a thin metal sleeve the diameter of the axle that is installed on the axle.
look for loose disconnected rear suspension components.also check for loose driveshaft bolts.inspect all nuts bolts to the specified torque.if everything check out okay.you have worn or damaged universal joint bearings.
have the drive shaft U-joints checked for excessive wear. if they are ok the differential carrier bearings are worn and allowing to much gear backlash.
The noise is caused by the axle button being worn out, this lets the axle move back and forth and clunk, this is a unique problem with C clip retained axles, it is a noise issue but will not fail and cause any more damage, in order to fix it you must have the axles pulled and the diff carrier checked for excess wear where the axle retainning C clip rides, if the carrier is ok then replace the axles.
U-joints are new also.
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