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sliderz1 wrote:rear diff supposed to use 75W-140 hypoid LSD [IIRC] not 90, that is, if it's the rear diff you're speaking about
AaronB13 wrote:So the verdict:
Took sliderz advice and used what his manual recommended
Nothing appeared to be damaged in the diff when opened, cleaned out the 85W/90 and used 85W/140 instead and the knocking stopped immediately.
Despite speaking to many "mechanics" and "car experts", and about 400 people from the service center in N&M who said that ALL D22 rear diffs definitely use 85W/90, it seems SAE140 was the correct oil to use in mine.
From researching online, there's a lot of variations of the D22 which came with rear LSD, some (maybe most) of which use 90 body LSD oil and some which use 140.
It good to have your original service manual around, could save you plenty headache and $$$.
AaronB13 wrote:Had a leak in my diff sump, so I resealed it and put in fresh bel ray LSD 90 oil, but now I get a knocking noise when i'm turning slowly eg. reversing out of my yard or parking etc.
Someone told me the same thing happens to his frontier with belray/redline oil, and that NP or Castrol works better and eliminates the knocking..
Anyone else here can vouch or had similar experiences? Wanna be sure that there's nothing wrong with my diff..
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