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When I bought my car, I was also given the internals to a R32 GT-S R200 LSD.
I have seen some pictures of different types of LSD's, but for some reason, this doesn't look like most I see in the pics.

Is it really a LSD? I am worried that I may have just been given some open diff parts maybe?

If it is a LSD, and I am going to install it, would it be a good idea to have a transmission shop do the work (I would remove diff and take to them).
I don't think I could correctly measure and adjust the shims for the output shafts, etc.

Here are the pics:

 

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I have gotten some replies on other forums, one person thinks this is a VLSD, the other thinks it's an open diff.

I think it might be an open diff, and I was mislead. These parts were given to me with the car, so I don't understand why then would lie about it, but I was told this was a LSD R200 from a R32 GT-S.

I wonder what car this is even from now, it's got the 5x1 bolt pattern...

 

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Most people think it's a VLSD.

It's definatly not an open diff, here's a pic of one.

Still not sure if it is a mechanical LSD or a VLSD.

like I said, it's supposedly from a R32 GT-S.