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Jason
Dodge Dakota
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6/21/2002
21:43:32
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 Subject: DIFFERENTIAL GEAR OIL CHANGE
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How do I change the gear lube? do I just unplug the plug and insert new lube?
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Dr.D
Dodge Dakota
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6/21/2002
22:56:33
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Always remove the rear cover and use a clean lint free towel and run it under the ring gear and wipe out as much fluid as possible, then look on the towel for metal particles.
Also look for anything that looks abnormal and correct any problems.
I once found a DANA axle that sheared a pinion gear shaft retaining bolt and the head of the bolt was laying in the bottom of the housing.
the unthreaded portion of the bolt had to be removed with a screw extractor.
I was lucky that I was changing the gear lube and found that problem when I did.
ALWAYS REMOVE THE COVER and then refer to
a chilton's, MOTOR or a Haynes manual for the proper procedure to put everything back together.
DO NOT FORGET THE GEAR LUBE !!
Hope this helps,
Dr. D
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James
GenIII
 
6/21/2002
23:42:06
|  RE: DIFFERENTIAL GEAR OIL CHANGE
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Here's a quick tip to reduce the mess. Remove all the bolts except for 2 on the sides of the cover. Leave a few threads of these bolts in the rear end, then when you pry the cover off, it doesn't fly off spreading fluid all over the place.
02 QC 4x4, 5.9L/auto, 3.92/LSD, Leather, SLT Plus
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Jason
Dodge Dakota
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6/22/2002
00:16:59
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
So I have to take off the whole cover? how do I do thast? and also, what is the plug for then?
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SuperBee
Dodge Dakota
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6/22/2002
07:15:35
|  RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
the plug is there for adding and checking the lube, also for filling it, fill it to the top of the plug. Also make sure you go to a parts store and get a new gasket, they are a few bucks for peace of mind that you have a brand new gasket
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Amsoil Dealer
Dodge Dakota
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6/22/2002
09:15:19
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
Jason,
-------------------------------------------------
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)
If you choose AMSOIL, our 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.
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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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Amsoil Series 2000 75w-90 is excellent for use in passenger cars and trucks requiring a GL-5 gear lube, including those with limited slip differentials.
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AMSOIL PRICING (May 2002)
Series 2000 75w-90 $9.20 Qt. / 75w-140 $12.05 Qt. retail.(preferred customer $7.20 / $9.35 respectively). You can become a preferred customer for $20 per year and $10 for a 6 month trial and receive up to 25% off retail pricing.
I "believe" that GM charges over $13.00 for a quart for Goodwrench Synthetic 75w-90 GL-5 gear lube.
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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.
Did you have any further questions regarding transmission lubricants? Let me know if I can be of any further assistance.
Steven Roark, Amsoil Dealer
www.american-synthetic-oil.com
sroark@american-synthetic-oil.com
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FREAKenPYRO
Dodge Dakota
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2/25/2004
13:20:48
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
all this info really helps, but I got a different questoin.. what if the plug is leaking, where can I get another one?
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00R/T CC
Dodge Dakota
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2/25/2004
18:34:08
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
Dealer or a Quick Lube type place.
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Dr. D
Dodge Dakota
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2/26/2004
18:27:24
| RE: DIFFERENTIAL GEAR OIL CHANGE
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The rubber plugs can be purchased at most any parts store.
A little seepage at this point is not uncommon.
Dr. D
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FREAKenPYRO
Dodge Dakota
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2/27/2004
13:21:36
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
thanks
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AmsoilSponsor
DakotaEnthusiast
2/27/2004
14:14:59
|  Amsoil Slip-Lock Differential Additive
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Message:
__________  __________
__________________________________________________
__________ 
__________________________________________________
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.
__________________________________________________
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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Where
Dodge Dakota
JOIN HERE
2/27/2004
18:16:40
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
Do you find a diff. cover gasket ?, I have had no luck.
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warwick
Dodge Dakota
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3/27/2004
09:11:39
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
I called Autozone they have in stock gasket for 8.25 and 9.25 ring gear don't have the 7.25.
Mine is 8.25 There is a tag on the diff to find this info or the dealer parts dept can tell you by the VIN
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six pack
Dodge Dakota
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3/27/2004
15:20:08
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
The only place worse than the stealer is a "quick lube type place" find a reliable independent and let him do all the work on your truck if you dont do it yourself
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00R/T CC
Dodge Dakota
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3/27/2004
17:09:22
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
The reference I made to the "quick lube type place" was only in answer to FREAKenPYRO's question about where to find a new plug, not where to get service. And even at the 'stealer' it wouldn't be more than a couple of bucks...
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AmsoilSponsor
DakotaEnthusiast
9/30/2004
13:10:49
| Amsoil Severe Gear Synthetic EP Gear Lube - Amzoil
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Message:
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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DakHunter
Dodge Dakota
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9/30/2004
18:23:37
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
You don't need a gasket. It comes with no gasket from the factory - you won't find one. Mine had RTV sailicone on it brand new. (2001 4x4 LSD 9.25 inch)
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Dr. D
Dodge Dakota
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9/30/2004
21:16:37
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
Fel-Pro does make a gasket.
Dr. D
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JES
Dodge Dakota
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10/07/2004
13:45:35
| RE: DIFFERENTIAL GEAR OIL CHANGE
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Message:
What are the differential bolts torqued to on an 8.25" rear diff?
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