Differential Gear Oil Change Question.
#1
Differential Gear Oil Change Question.
I have a 2000 Dodge Ram 1500 Laramie SLT 5.2L V8 RWD with a corporate 9.25" axle and LSD, the truck has 230,000 miles on it, and I doubt it's ever been changed, so tomorrow I'm going to change it.
I believe I read it requires 4.5 pints (2.25 quarts) of 80-90 gear oil and 4oz of LSD additive added, is that right?
I am not planning on doing it the way of removing the axle cover, I was just going to drain it as much as possible with a pump and fill to recommended fill, I know I should, but I'm gonna do this lol.
It doesn't seem to be too hard of a task, I'm dreading tho to see how bad the gear oil looks if it's never been changed.
Is the ratio I read the correct one tho?
I believe I read it requires 4.5 pints (2.25 quarts) of 80-90 gear oil and 4oz of LSD additive added, is that right?
I am not planning on doing it the way of removing the axle cover, I was just going to drain it as much as possible with a pump and fill to recommended fill, I know I should, but I'm gonna do this lol.
It doesn't seem to be too hard of a task, I'm dreading tho to see how bad the gear oil looks if it's never been changed.
Is the ratio I read the correct one tho?
#2
Fill it back up about 1/4 inch below fill hole with the 80-90 and 4 oz of friction modifier/ Mopar brand, a little extra won't hurt anything. Sounds familiar. You can clean it out better and inspect things if you pull the cover off. Just run a bead of RTV, bolt cover back on and fill. Pray you don't find a metal chunks on the bottom.
#4
I didn't have any symptoms on my old truck, then I had a quick lube place change differential fluid use the suction method. First turn out of the parking lot...SHUDDER! Took the cover off and found clutch pack material and the clips that hold them together stuck to the magnet on the bottom. The fluid change method didn't cause the problem, it just stirred things up in there. I couldv'e been that way for 10,000 miles prior for all I know.
New fluid is always a good idea.
New fluid is always a good idea.
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#8
Cleaning the RTV off is the worst part of the whole process....what i like to do is make a bead of RTV around the perimeter of the cover going underneath the holes...then I use my hand (with a latex work glove on) to evenly smear the bead of RTV around the outer rim of the cover so that I can be sure that there are no weak or uneven spots when the cover is put back on. Alot of people just run the bead and stick it on tho, which works fine for the vast majority of the time
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