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Dodge Dakota rear-end noise

43 messages,  Last post on Mar 16, 2009 at 11:43 AM

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#24 of 43 Re: limited-slip differential failure [02dakota] by 02dakota Oct 19, 2007 (6:51 am)
Replying to: 02dakota (Oct 18, 2007 1:13 pm) One more question. (Continued from question above)   What is the ultimate fix for this rear end problem?   I really don't want to get rid of this truck. But I'm nervous as heck driving it, waiting for something to happen.   Is it only the limited slip diferentials that are having the problem? If so I wouldn't mind having someone put open gears in it.   Is it everything concerning the 9.25 rears? Earlier Dusty I believe mentioned the rear pinion bearing. I wouldn't mind having someone put in a 8.25 open rear end. What exactly is the 8.25 rear meant for, 4 cyl, V6? Would it be okay to put an 8.25 rear in the 4.7?   Thank you, please respond. Lu
#25 of 43 Re: rear-end high pitched whining noise [miswhi3] by retired1sg Nov 07, 2007 (10:41 am)
Replying to: miswhi3 (Mar 05, 2007 6:18 pm) On my 01 Dakota Motorsports Limited Edition, with an anti slip differential, I have a noise that appears to be coming from the right rear that sounds like there is a snow tire on the right rear wheel. It accentuates when turning to the left. The dealer tells me that it's caused by bad bearings in the rear differential. At the price they want to repair it, I want to be sure before committing.
#26 of 43 Re: Rear end noise? [dustyk] by jhughe90 Dec 05, 2007 (12:57 pm)
Replying to: fawlrud (Jun 03, 2007 10:28 pm) I've had similar problems with my '99 Dodge Ram QC 1500 2WD 5.9. The noise symptoms were exactly as Dustyk described it:   "45-60 mph noticeable whining/ringing only when gas pedal is pushed, when engine is not under any load, noise ceases. "   Eventually the noise became worse until it was a horrible grinding last time.   I've had the back end completely rebuilt now TWICE in the last 10k miles (17 mos). It's now making the same noise again. I'm not paying for another bad repair again, but have no idea what to do this time if I'm just going to get another bad diagnosis.
#27 of 43 rear end whining noise by mags3 Aug 18, 2008 (1:38 pm)
just got done reading the post about the noise everyone had. i have a 2000 dakota club cab 4x2 with a 8.25 rear with 76000 miles. i just spun the pinion bearing race, caused all the lub to leak out in witch the bearing then froze and chewed up the housing and pinion. the whining noise lasted for 5 min be for all the above damage happened. at lease i see i wasnt the only one that had problems with the rear end. Replies to this message: dustyk (Aug 28, 2008 3:47 pm)
#28 of 43 Re: rear end whining noise [mags3] by dustyk Aug 28, 2008 (3:47 pm)
Replying to: mags3 (Aug 18, 2008 1:38 pm) Punky differentials have been an issue on Dakotas for some time. I recently talked to my Dodge tech. who insists that the 9.25 axle is made by Dana. Could be, but I'm pretty sure the 8.25 axle is or at least was made by American Axle. In any event they are both Chrysler designs. The technician says that the number of premature problems are a lot less than they use to be. But he said 2000-2003s were the most trouble.   The 8.25 is more than adequate strength wise behind a 4.7 motor. The critical working limit is load and these axles are used on Dakotas under 6000 GVW and with smaller wheels and tires.   The 9.25 is used on Daks above 6000 GVW and with larger wheels and tires.   My son's '91 Dak is still going on the original 8.25 at 315K miles. I know when he had it he maintenance the differential every 50K.   On my 2003 3.55 LSD 9.25 I've drained, flushed, and installed new lubricant every 25K. So far so good, but at my 100K I found one of the small curled ends of the steel end tabs clung to the magnet. Just lucky that the ring gear didn't pick it up. I looked at the ring and pinion and there is no signs of any damage.   One thing that should be looked at more closely is the rear U-joint on older or higher mileage Dakotas. Vibration from a bad U-joint can take out a front pinion bearing and race.   Holding my breath a little at 108,000 miles!   Regards, Dusty
#29 of 43 Rubbing Noise when turning by buffalo3 Aug 30, 2008 (3:14 pm)
My Dakota rear wheel(s?) makes a rubbing noise when turning the wheel while moving. Have had it to the shop numerous times, and it still continues to do it. Any thoughts on this? Replies to this message: dustyk (Aug 31, 2008 11:04 am) buffalo3 (Aug 31, 2008 12:14 pm) dustyk (Aug 31, 2008 9:56 pm) and 1 more...
#30 of 43 Re: Rubbing Noise when turning [buffalo3] by dustyk Aug 31, 2008 (11:04 am)
Replying to: buffalo3 (Aug 30, 2008 3:14 pm) What axle do you have? Limited Slip or conventional?   Regards, Dusty Replies to this message: buffalo3 (Aug 31, 2008 12:14 pm) dustyk (Aug 31, 2008 9:56 pm) buffalo3 (Sep 01, 2008 6:04 am)
#31 of 43 Re: Rubbing Noise when turning [dustyk] by buffalo3 Aug 31, 2008 (12:14 pm)
Replying to: dustyk (Aug 31, 2008 11:04 am) it's a 4 wheel drive -- does that help? If not, I'll have to check on that. thanks Replies to this message: dustyk (Aug 31, 2008 9:56 pm) buffalo3 (Sep 01, 2008 6:04 am)
#32 of 43 Re: Rubbing Noise when turning [buffalo3] by dustyk Aug 31, 2008 (9:56 pm)
Replying to: buffalo3 (Aug 31, 2008 12:14 pm) The limited slip differentials (LSD) used on Dodge trucks contain sets of friction clutches. These allow for distributed driving force to each wheel and still allow for one wheel slippage on turns and severe traction differences.   The lubricant used in LSDs contains a friction modifier which permits lubrication of the clutches while providing for a controlled rate of slippage. As miles accumulate the rear axle lubricant wears down, so to speak, the slippage of the clutches can sometimes cause a chattering between the separate cluch surfaces that sounds like a groan. I'm thinking this might be the cause of your symptom.   Resolution is very simple. A drain and refill of the correct rear axle lubricant and a 4 ounces of friction modifier. For Mopar LSD differentials the LSD additive (friction modifier) is part number 04318060AB.   Regards, Dusty Replies to this message: buffalo3 (Sep 01, 2008 6:04 am)
#33 of 43 Re: Rubbing Noise when turning [dustyk] by buffalo3 Sep 01, 2008 (6:04 am)
Replying to: dustyk (Aug 31, 2008 9:56 pm) Wow. thanks for the info. NO ONE has done this in the three times I've taken it to a mechanic. I guess I'll take this post to the dealer and tell them to do this (I'm sure they won't appreciate it, but hey...they had their chance.) Thanks so much for the reply!

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