Thank you again, lifted the car and turned the wheel around, it turned the opposite wheel the same direction also, so i assume it is a lsd.. I called the prev owner and he could tell me that he used just plain motor oil in the diff( he never got to drive the car since the engine where broke so he just filled it with engine oil so he could preserve it
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So i did a little test run today, and the diff seams ok but i have to change the oil cause it locks when turning..
I have read in this forum about the Mobil 1 red line, but is this a ls oil?