Diff fluid change
#1
#2
KD:
Most of us run one of the better synthetics such as Mobil 1, Amsoil, or Royal Purple.
You can run the 80/90, or the 75/140 if you tow alot.
I went with M1 at my 30k, and when I pulled it at 60k it still looked and smelled like new.
The OEM dino crap that came out at 30k looked and smelled like dino poop.
I went back in with Royal Purple at 60k, and so far so good.
Don
Most of us run one of the better synthetics such as Mobil 1, Amsoil, or Royal Purple.
You can run the 80/90, or the 75/140 if you tow alot.
I went with M1 at my 30k, and when I pulled it at 60k it still looked and smelled like new.
The OEM dino crap that came out at 30k looked and smelled like dino poop.
I went back in with Royal Purple at 60k, and so far so good.
Don
#4
KD:
You only need the friction modifier if your rear axle has the limited slip carrier. Both Mobil 1 and Royal purple say that it should not be needed if you use them.
Some folks have found that to be true, and others have had noises that went away after adding the modifier.
IIRC, it comes on a 4-6 ounce bottle which is enough to treat one axle.
My D does not have the LS option, and when it was part time 4x4 I considered adding an LS carrier. After thinking a bit more, I realized I could make the swap to AWD for about the same price, and decided to do that instead.
Don
You only need the friction modifier if your rear axle has the limited slip carrier. Both Mobil 1 and Royal purple say that it should not be needed if you use them.
Some folks have found that to be true, and others have had noises that went away after adding the modifier.
IIRC, it comes on a 4-6 ounce bottle which is enough to treat one axle.
My D does not have the LS option, and when it was part time 4x4 I considered adding an LS carrier. After thinking a bit more, I realized I could make the swap to AWD for about the same price, and decided to do that instead.
Don
#7
KD:
You will need at least two for either the front or back, so if you get three you can do them both.
Mshark:
Check your glove box for a sticker in there on the inside bottom that should list several options on your D.
Where it talks about axles, it will say the size for the rear (either 8.25 or 9.25), and then the words Anti-Spin if you have the LS.
A second location to verify is a white label behind your driver side rear wheel on the axle tube. It Should give the ratio (3.55 or 3.92), then say Anti-Spin or Open Carrier if not equipped.
Don
You will need at least two for either the front or back, so if you get three you can do them both.
Mshark:
Check your glove box for a sticker in there on the inside bottom that should list several options on your D.
Where it talks about axles, it will say the size for the rear (either 8.25 or 9.25), and then the words Anti-Spin if you have the LS.
A second location to verify is a white label behind your driver side rear wheel on the axle tube. It Should give the ratio (3.55 or 3.92), then say Anti-Spin or Open Carrier if not equipped.
Don
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