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Differential Fluid Maintenance

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Old 10-30-2008, 11:17 AM
minex minex is offline
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Default Differential Fluid Maintenance

How often should I be replace the differential fluid on my truck? The dealership said that I should change it every 15,000 miles. I have 17,000 on my truck right now. The cost of doing this is almost $300!

I consulted the manual and Schedule B doesn't even mention replacing the differential fluid (front and rear axle fluid, is what I assume this is). Schedule A lists a replacement every 15,000 miles. $300 every 15,000 miles is going to add up.

I've only towed my 6000 lbs travel trailer maybe 2,000 miles out of my 17,000. Other than that, the truck is a commuter vehicle during the winter.
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Last edited by minex; 10-30-2008 at 11:24 AM..
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Old 10-30-2008, 11:22 AM
minex minex is offline
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Also, what about the front differential? I rarely use 4 wheel drive. Only a few times during the winter to get me out of the snow. It seems like a waste to replace it every 15,000 miles. It would be cheaper if I just replaced the rear.
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Old 10-30-2008, 05:52 PM
Bass Hunter Bass Hunter is offline
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The front diff is turning whenever your driving wether your in 4 wheel drive or not. This is a very easy do it yourself project. About 90.00$ for both axles. I look at it this way. Its a near 40,000$ truck is it really worth skimping on 90$ ??? I'll also add that the first change is the most important because it had to break in and you need to get any metal shavings out of there.
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Old 10-30-2008, 09:09 PM
minex minex is offline
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Yeah, I'll go ahead and do it myself. It doesn't look too hard. Does anyone have suggestions on which fluid I should use?
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Old 10-31-2008, 01:14 AM
1Normy 1Normy is offline
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Cool

When I bought my truck, it had 90,000 miles on it, so I promptly changed EVERYTHING. I went AMSOIL all the way. Here is a list of what I used.

Motor Oil AME 15/W40 Severe Duty Diesel Marine OIL
NV 5600 Transmission MTF Synchromesh Transmission Fluid
Transfer Case ATF Automatic Transmission Fluid
Differentials SVG 75W/90 Sever Gear Lube

Cant remember the quanities, but it is cheap insurance if you value your truck!
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Old 10-31-2008, 05:00 PM
Bass Hunter Bass Hunter is offline
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I used mobil 1 It's reasonably priced and meets all requirments. It's also synthetic.
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Old 11-02-2008, 08:46 PM
steve05ram360 steve05ram360 is offline
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Amsoil is the way to go. Lighter weight for no towing to light towing & heavier weight for everything else.
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Old 11-04-2008, 11:31 AM
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How many quarts/gallons of the axle fluid should I pick up when replacing both the front and rear? The manual doesn't seem to specify.
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Old 11-04-2008, 12:40 PM
steve05ram360 steve05ram360 is offline
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7 quarts... 4 in back, 3 in front. last time I got 8 and cracked the 8th for about 2~3 oz... but I was on a slight incline.
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Old 11-04-2008, 12:54 PM
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Quote:
Originally Posted by steve05ram360 View Post
7 quarts... 4 in back, 3 in front. last time I got 8 and cracked the 8th for about 2~3 oz... but I was on a slight incline.
Thanks. What do you think about the Mag-hytec or PML differential cover? I was thinking about replacing the stock cover with one of these. They're kind of expensive though, but it looks as if it might make future fluid changes easier.
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Old 11-04-2008, 12:54 PM
 
 
 
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1995, 2005, 2500, amount, change, changing, cummins, dakota, differential, dodge, duty, fluid, fluids, lube, oil, ram, super

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