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black2003
Dodge Dakota
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11/13/2003
09:58:43
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 Subject: Noisy LSD after fluid change
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I just got my fluids changed at the dealer today. 1000 miles ealier i got my gears changed to 4.10 and an auburn limited slip. Now when i take turns i hear a squeaking sound coming from the rear differential. Is this normal or did my dealer screw something up?
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Mark
Forum Moderator
11/13/2003
12:59:54
| RE: Noisy LSD after fluid change
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If you dont put the proper additive in it will not work properly. Also if you went to higher gears then it will make a slight noise. I had no noise with the 3.55 but now on the highway the 3.92's make a little faint whining sound. 4.10's would be a little louder.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
Mark.DodgeDakotas.com
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kj
Dodge Dakota
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11/13/2003
16:10:26
| RE: Noisy LSD after fluid change
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I have an Auburn in mine and the manufacturer specifies only conventional 80W-90 and GM or Ford LS additive.
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phil318
Dodge Dakota
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11/13/2003
21:29:05
| RE: Noisy LSD after fluid change
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I have an Auburn in mine, and the Auburn people said not to use synthetic gear oil. They also said not to use one type of friction modifier, I don't remember what it was. I have been using the Mopar friction modifier with no problems.
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black2003
Dodge Dakota
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11/13/2003
22:52:31
| RE: Noisy LSD after fluid change
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thanks for the help guys. the problem was that the damn dealership forgot to put any kind of additive in. I'll forgive them though i guess. They are pretty cool the did my cams and HO intake plus took of the clutch fan for me.
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GraphiteDak
GenIII
 
11/13/2003
23:57:42
| RE: Noisy LSD after fluid change
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Your dealer removed your clutch fan for you??? I am surprised. Is your truck still under waranty?
I threw mine back on when I just took mine in for routine service then removed it when I got home. They are easy as heck to remove and replace.
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AmsoilSponsor
DakotaEnthusiast
11/14/2003
09:02:18
|  Amsoil Gear Lube = www.american-synthetic-oil.com
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FYI - Gear Lube Information:
High quality gear oils must lubricate, cool and protect geared systems. They must also carry damaging wear debris away from contact zones and muffle the sound of gear operation. Commonly used in differential gears and standard transmission applications in commercial and passenger vehicles, as well as a variety of industrial machinery, gear oils must offer extreme temperature and pressure protection in order to prevent wear, pitting, spalling, scoring, scuffing and other types of damage that result in equipment failure and downtime. Protection against oxidation, thermal degradation, rust, copper corrosion and foaming is also important.
AMSOIL Series 2000 Synthetic 75W-90 Gear Lube delivers unbeatable protection and fuel economy (independent testing shows class 8 vehicles with AMSOIL Series 2000 Synthetic 75W-90 Gear Lube in the differentials obtained up to 4.83 percent more mpg than vehicles equipped with another popular gear lube). Amsoil Synthetic Gear Lube has the film strength required to deliver all the protection heavy-duty and high-stress applications need in a fuel-saving viscosity grade. AMSOIL Series 2000 Synthetic 75W-90 Gear Lube is recommended for use in all passenger vehicles, commercial trucks and race vehicles.
AMSOIL 75W-90, 80W-90 AND 85W-140 Gear Lubes exceed the lubrication and performance requirements for gear boxes where API MT-1, GL-4 or GL-5 lubricants are specified.
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I am going to quote an old friend from this site ... Sandman ... whom we have not heard from in a while. Hope everything is okay Sandman.
... and I quote: "GM recomends 100,000 to 150,00 mile drain intervals. This is in the 8.625 rear end's equipted with synthetic gear lube from factory. This is under normal conditions. So I will apoligise for makeing fun of Amsoil's claim of "life of vechile" drain interval for their new 2000 series gear lube. I figure if that type of drain interval can be aproved by an OEM then that is good enough for me!
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Amsoil Series 2000 is latest introduction from Amsoil offering a higher level of performance vs. Amsoil's regular gear lube. They start with a different base stock with a special additives package. Amsoil could have discontinued the regular gear lube but contine to carry it due to its popularity.
A lot of people ask: 75w-90 or 75w-140 ? Personally I would use the synthetic 75w-90 since synthetic 75w-90 will perform above and beyond the recommended petroleum 75w-90.
I have Freightliner customers driving Class 8 Tractor Trailor Trucks using 75w-90 synthetic gear lube in their difs. Tuff enough for them ... Tuff enough for me.
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Additives
AMSOIL Slip-Lock Differential Additive
Effectively Eliminates Gear Housing Chatter
When making a turn, the outer wheels of a vehicle must travel faster than the inner wheels. It is up to the differential to act as a balance arm, establishing constant equilibrium of torques and forces between the left-hand and right-hand driven wheels. In standard (or open) differentials, power is directed to the wheel offering the least resistance. This works well when making a turn, but in a situation where one wheel is lifted off the ground, it causes the suspended wheel to turn while the other remains motionless.
Limited-slip (or positraction) and locking differentials are traction-increasing devices. Locking differentials transfer all available torque to both wheels. The teeth of the spider assembly engage with those on the locker clutch, causing both axle shafts to operate as one. Locking differentials don't allow one drive wheel to spin while the other remains stationary. Instead, they keep both wheels in drive mode, but unlock to permit different wheel speeds when turning. The engaging and disengaging of the teeth on automatic locking differentials often causes a banging and clunking sound. Manual locking differentials usually use an electric motor or vacuum diaphragm to engage the locker, reducing this noise.
Limited-slip differentials allow different wheel speeds when turning, but when one wheel loses traction, greater torque is transferred to the wheel offering more resistance. Limited-slip differentials make use of friction between clutch plates, as opposed to the meshing teeth employed by locking differentials. Transferring less torque per side, limited-slip differentials are generally smoother and quieter than locking differentials, but still sometimes "chatter" when transferring torque to the wheel with traction.
In some differential applications, a friction modifier additive is necessary to reduce chatter. AMSOIL Slip-Lock Differential Additive is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with limited-slip, positraction and locking differentials. It also reduces the banging and clunking associated with automatic locking differentials.
AMSOIL Slip-Lock Differential Additive is formulated for use with both synthetic and petroleum gear lubricants and safely replaces manufacturer recommended friction modifiers. Its convenient flip-top dispenser provides quick and easy application to the gear housing. One four-ounce bottle of Slip-Lock treats differential capacities of two to four quarts. It is not for use in automatic transmissions or other applications requiring ATF.
NOTE: AMSOIL Synthetic Gear Lubes DO NOT require the use of this additive. However, not all differentials respond the same and if chatter is noticed, the addition of AMSOIL Slip-Lock will eliminate it. For chattering differentials not running AMSOIL Gear Lube, this product is an excellent solution to the problem.
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DIY
For those of you thinking of changing your own fluids (DIY) ...
Helpful Differential Recommendations:
-Flush (drain) as much of the old fluid out.
-Differential fluid capacity depends on ring gear and axle housing size.
-Do not over/under fill differential. This could mean a capacity difference of a quart or more and may cause overheating problems. (See the owner’s manual for proper fill level)
AMSOIL gear oils are formulated with friction modifiers for limited slip differential applications. There is no need to add limited slip or additional additives. If you choose a different manufacturer than Amsoil ... fine by me, just offering my services.
-After changing the differential fluid, drive the vehicle in 7 or 8 figure eight turns, so the new lubricant can work its way into the axle assembly.
Synthetics provide the long-lasting protection, fuel efficiency and dependability needed for top performance, even extreme-pressure conditions. Stays fluid in cold temperatures for easy cold-weather shifting.
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To request a FREE Amsoil Catalog, clink the link below.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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black2003
Dodge Dakota
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11/14/2003
10:37:41
| RE: Noisy LSD after fluid change
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Yes my dealer did remove my clutch fan for me. They did charge me 21 dollars to do it. I tried to remove it my self, but it wouldn't budge. My dealer also said they would install a three inch lift when Rancho comes out with there kit for the 2003. Yes everything is still under warrenty. They even complemented me on my sweet Z tube intake.
Man these Amsoil guys are hardcore with there ads!!
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Dakid
Dodge Dakota
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11/15/2003
19:55:01
| RE: Noisy LSD after fluid change
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I've heard that Amsoil's MP Metal Protector will reduce hip joint friction by up to 37.21%, and this was verified by an independent testing lab. If this is true, I'll buy some for my grandpa who has rheumatoid arthritis. Anyone know about this?
Any help would be appreciated as my grandpa has had a lot of trouble lately with the winter weather.
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Anthony
Dodge Dakota
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11/15/2003
21:06:33
| RE: Noisy LSD after fluid change
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Hey Dakid
Try wd-40 it happens to help arthritis. I'm not joking!!!
Anthony
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Dave Mitchell
Dodge Dakota
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11/18/2003
18:54:40
|  RE: Noisy LSD after fluid change
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Try adding some DMSO to the differential, if it cures squeaky, arthritic joints, it'll cure your squeaky differential...
Just kiiding....
Dave
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Ant
Dodge Dakota
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11/18/2003
19:29:18
| RE: Noisy LSD after fluid change
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I’ve been told by a local Amsoil dealer that Amsoil has developed a perpetual motion machine, but it will only work with Amsoil series 2000 0W-30. The Amsoil 0W-30 is critical because it will eliminate friction entirely. He said that this technology will be applied to automotive engines and allow over 100 mpg from a V-8 engine. The only problem is the big three in Detroit and gasoline refineries are trying to shut Amsoil down. It sound s to good to be true, but an independent testing lab has verified the Amsoil results. Please write your congressman, this may be the answer to our dependence on foreign oil.
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enuf
Dodge Dakota
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11/19/2003
05:20:14
| RE: Noisy LSD after fluid change
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Okay Dakid and Ant.
Enough with the BS, lies, and flaming.
You can go to the corner now for Time Out.
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AmsoilSponsor
DakotaEnthusiast
9/30/2004
13:29:17
| RE: Noisy LSD after fluid change
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AMSOIL Introduces ---
SEVERE GEAR™ Synthetic Extreme Pressure Gear Lubes
_____  _____
AMSOIL INC. of Superior, WI has updated its gear lube formulations in order to optimize its gear lubes for modern applications. SEVERE GEAR™ Synthetic Extreme Pressure Gear Lubes, available in 75W-90 and 75W-140 viscosities, are ideally suited for vehicles that experience towing, hauling, steep hill driving, commercial use, racing, off-road use, rapid acceleration, stop and go driving and high ambient temperatures.
Modern vehicles are designed with more horsepower and torque than in years past, allowing them to haul and tow heavier loads. The result is higher gear loading and hotter running differentials. In addition, factors such as increased interior space and lower floor boards push axles higher into the vehicle's body, reducing air flow and increasing heat. The closer proximity of the axles to the exhaust system also effectively raises temps, while more aerodynamic body styles and air dams restrict air flow to the differentials.
SEVERE GEAR™ Synthetic EP Gear Lubes deliver unbeatable power-enhancing protection, thermal stability and fuel economy in both heavy-duty and severe service operations. AMSOIL SEVERE GEAR™ has the film strength required to deliver all the protection high stress applications need in a fuel-saving viscosity grade at a competitive price. Recommended for use in all passenger vehicles, light trucks, SUVs, commercial trucks and race vehicles.
__________________________________________________
You can REQUEST A FREE AMSOIL CATALOG by clicking below.
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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