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yeahitsgotahemi
 
  rear differential whining noise ??? - Posted: 08-11-2010, 10:12 AM
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Post #1

have been noticing a whining / whirring noise coming from rear diff lately. visually inspected and dont see any fluid coming from pinion. topped off gear oil, only took about 2 ounces to top it off.

any ideas before i crack the pumpkin open?
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weedahoe
 
 Posted: 08-11-2010, 01:18 PM
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Post #2

Usually it is the pinion bearing making the noise. Could be worn out or set improperly. Mine whines also so dont feel bad. I will get to mine soon i hope.
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tha5150
 
 Posted: 08-12-2010, 09:12 AM
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Post #3

x2.. i had the same problem on a cherokee i had.. does the noise go away when you let off the gas a little and come back when you press on the gas? if so, it is most likely the pinion bearing..
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MeanThree18
 
 Posted: 08-12-2010, 10:02 AM
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Post #4

It could also be doing the exact opposite of mentioned above. It could whine while coasting and be quite under load. It's a very good possibility its the pinion bearings.

I wouldn't mess around, just get a bearing kit and replace all the bearings that are in there. No reason to have to do it all again if the carrier bearings go south on ya. The cost is in setting up the gears, not in pressing the bearings.
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PristineHemi33
 
 Posted: 09-01-2010, 03:48 PM
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Post #5

Ya mine was making a whining noise at different speeds at about 96,000. They opened it up and there was some metal shavings from the bearings. My dads 98 ram had the same deal not so long ago at 82,000. Now im rocking some 4.10's but they either used some cheap bearings or didnt shim it right cause i have a different sounding whine now. I love it when you spend money and things dont get fixed right. Its getting checked out manana.
Its most likely going to be your bearings. It seems to be a common problem with these trucks according to the guy who did my gears. He said the bearings don't get enough lubrication.
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jasonball98
 
 Posted: 09-03-2010, 09:06 PM
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Post #6

just bough an 02 and I have some whinining. how much to these bearing kits usually run and is this like a back yard driveway job or take it to the shop job.
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mmram4x4
 
 Posted: 09-03-2010, 09:44 PM
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Post #7

my 07 was making all kinds of noises when the shop opened up mine the bearings where bad and the spider gears had broke I guess I waited to long to get it fixed
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peeblesm
 
 Posted: 09-04-2010, 09:48 AM
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Post #8

i just noticed mines whine a few weeks ago at low speeds while im coasting. and i have all new bearings and new gears that are 5 months old in my truck.
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peeblesm
 
 Posted: 09-04-2010, 09:52 AM
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Post #9

mines only whines when im 30mph or lower when coasting through town. when im under load it dosent whine or when im driving 50mph or higher or on the highway it doesnt whine.
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2004 dodge ram 1500 4.7L engine. quadcab; shortbed 2wd military guy
nv3500 5-speed tranny
s&b cold air intake
4.56 motive gears and detroit tru trac in the rear end
centerforce II clutch
gibson headers, dual exhaust
flowmaster mufflers 40 series
NGK Spark Plugs (G-power) ZFR6FGP 7100
jet performance 180* t-stat
hurst competition plus shifter #3910155 (94-00 dakota v8) fits nv3500 tranny
line-x spray in bedliner over the rails
camper shell (A.R.E. brand with no windows on the side. too many blind spots now)
kool vue tow mirrors
debadged ram 1500 letters on both sides
PML diff. cover(I like it)
265/70/17 tires on stock rims painted metallic black ( holding up good so far. lol )
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