vlsd whining

[lolatclint]

it whines on hot days. what does that mean and what do i do to fix it?

please help me :(

[rb25_s13*CHUKI]

Bad gear oil? Any gear oil period? Might be too thin or not enough..

[lolatclint]

mm im not sure. how do i check if theirs any gear oil? sorry i'm new.

[punxva]

well use a 1/2in breaker bar on the side of the casing in the square hole, it's the fill plug, put your finger in it, if it's right below your finger then it's got enough in it, if not add some, also you could just pull it out.

[lolatclint]

alright so if i just have oil in it, it'll stop whining?

thanks.

[singlecamslam]

well does it have oil in there? if not than add some right away! If you had some already in there might want to drain it and change it.

[punxva]

i mean it could be going out, i used to have a j30 in my s13 before i welded an open diff, and when i took it out, it had like 1/2 a quart of gear oil in it, and still didn't whine, it just didn't lock at all lol. how long has it made this noise, did you just install it? did you shim it?

[lolatclint]

its been makin the noise for like a couple months. a friend said it might be my transmission? ehh.