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QuadCab
Dodge Dakota
10/18/2001
19:14:35
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 Subject: Howl in Differential
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Message:
I recently replaced the rear-diff. fluid with Redline 75W-90 gear-oil with the Redline friction modifier already in it.
I previously had a howl starting almost right at 40 MPH and up to 50 MPH, then the howl would stop past 50 MPH. The howl occurs while coasting in that speed range mostly. This howl remained after replacing the with the Redline fluid.
Can add a bottle of Mopar Friction modifier to the Redline oil all ready in my diff. or is it compatible? Redline's website doesn't say from what I read.
Has anybody experienced after adding some friction modifier the howling going away?
Thanks,
QuadCab - 2001 Dak QC 4.7L w/ 2WD 3.55 LSD
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Clevite 77
Dodge Dakota
10/18/2001
23:21:30
|  RE: Howl in Differential
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Message:
is it under warranty? I know it's a hassle, but the backlash may not be set right in the diff.
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Kevin Dinwidd
Dodge Dakota
10/19/2001
18:23:08
| RE: Howl in Differential
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Message:
Mag-Hytec has an oil from LE that will quiet your rear end. You'll be supprized and pleased. Their # is 1-818-786-8325
Kevin
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DStarr
Dodge Dakota
10/20/2001
10:56:09
| RE: Howl in Differential
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Message:
I had some problems with mine. took it to the dealer and changed out the fluid. Sound went away. I agree with Clevite 77. Take it back to the dealer.
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QuadCab
Dodge Dakota
10/20/2001
14:51:54
| RE: Howl in Differential
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Message:
Okay, I'll make an appointment some time with the dealership, but knowing them they'll probably say they can't hear/reproduce the noise, but it's worth a shot.
Thanks.
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Broeheem
Gen III
10/21/2001
00:57:01
| RE: Howl in Differential
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Message:
I have pretty much the same problem....
a "whine" from the dif which is more pronounced as the speed increases. Does anyone have an idea as to why simply changing the fluid would solve this?
Besides the horrible alignment - which has already more or less destroyed my tires (truck is only 6 mos. old), this "howl" is the only real issue that I can complain about.
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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autocrosser
Dodge Dakota
10/21/2001
22:12:11
|  RE: Howl in Differential
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Message:
I had the same problem. I took mine back to the dealer. They replaced the ring and pinion gear.
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Clevite 77
Dodge Dakota
10/22/2001
08:33:10
| RE: Howl in Differential
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Message:
Hey autocrosser did they give you the run-around before replacing it or were they pretty cool about it? Just wondering.
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CW
Dodge Dakota
10/22/2001
09:24:13
| RE: Howl in Differential
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Message:
If they can hear it they shouldn't give you a hassle. If you have to, take the Tech for a drive and show him what it is doing. I would deffinataly go back.
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alshadow
Dodge Dakota
10/24/2001
23:07:35
| RE: Howl in Differential
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Message:
Agree with posts above that recommend taking to dealer. I experienced same/similar problem w/ my 98 C/C 4X4 while under warrenty. Rear gears were replaced without hassel.
Had same problem w/ the front differential on an 01 Durango R/T. Dealer replaced under warrenty without hassel.
Hope it works for you.
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cyberwiz
Dodge Dakota
11/12/2001
00:30:11
| RE: Howl in Differential
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Message:
I have a 92 Dakota with 200,000 miles on it and my rear end diff. growls under load when on the gas or brakes. When I coast without applying any power it is totaly quiet.
When I bought my truck 25,000 miles ago it had been retired as a Terminex fleet truck that had a very poor service history. I had all the fluids and filters changed on the truck and the problem still exists.
I hope there is a cheaper fix to this than replacing the rear end diff.
Any advice or info would be greatly appreciated. Thanks!
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