Question about 1986 Isuzu Pickup

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Rear diff making a noise

86 izusu pup.noise coming from the rearend only when i let off the accelerator.is it a bearing?

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It sounds like your low on fluid in your rear axle, or your differential is warn and will need to be replaced soon. Good luck

Posted on Nov 15, 2009

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The noise you are hearing is most likely a worn down pinion gear and ring gear but it could be uni joints and bearing themselves. make sure gear oil is full

Posted on Nov 15, 2009

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Noisy rear diff or bearing any advice?


Needs to be off the ground to see for sure. When it comes to differential bearings I replace all them, to include the axle bearings. Depends on the vehicle. No year make or model. the differential also needs looked at.

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When I turn right my rearend pops and grinds like its breaking something


Joe, Could be a few things, U joint, E brake shoes falling off inside rotor, bad bearing in diff. better take it into a good tech. and have checked. too hard to diagnose from here. "Check the attached links,instruction and guides, Good luck
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1 Answer

I have a howling noise rear end only when I accelerate


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1 Answer

Gmc safari 2001 replaced rearend because. It exploded now the oil gear is fluctuating when idle and the van is shaking while idle. Rearend. Is hot to touch and i hear popping. Noise when i cut it off


The rear end will be to hot to touch after driving but if it is really hot (like cannot get the finger anywhere near it )then the problem will be in the diff . Possible pin ion bearings are under excessive preload by nut using a new spacer under the pinion flange or attempting to remove back lash at the pinion flange by tightening up the pinion nut. Excessive oil and the wrong grade of oil ( ordinary diff oil in a LSD diff) or running one side tyre at a different profile height to the other. The popping noise may be oil burning off ( like fat in an overheated fry pan)

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1 Answer

Differential noise


indicates axle bearing failure rather than diff problems
diff failure is indicated by a growling noise on acceleration or deceleration or a constant harmonic hum while driving at a steady speed
from your description of where the noise is most pronounced indicates wheel bearings

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I am having a noise that appears to be coming from the rear of my '05 Jeep Liberty Sport 4x4. The noise kind of builds up to a certain level, then backs off and in a few seconds begins to build back up...


it could be a u joint hard to tell.it could be in the rear end(differential).if you accelerate and the noise is there then this indicates a ring gear to pinion gear problem or if its there but not as noticeable when at a steady speed then it sounds like differential bearings.if you hear it when turning then it could be axle bearings.

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jack car up and remove the rear shaft retainer plate, 6 14mm bolts. use a 12mm spanner to remove the 4 nuts and bolts on rear of tailshaft and front, take the shaft out completely, check for play in the front yolk of the diff, there should be very minimal play, if there is alot of play or worse your getting rotations then the front bearing is gone and will need replacing, you can get the whole diff centre fro about $260 from sunbury parts in qld. cheaper and quicker option, make sure the gear rations are the same.

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Have the pinion bearing in the rear diff checked.

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