Hi all,

I bought a diff years ago and the seller told me it was an LSD and it sat on my shelf for some time. Both axles turned the same way so I didn't think much about it.

Now I'm getting ready to start to get my car working again and am wondering what I have.

It has a metal tag on the filler plug that is worn so much it's blank and the housing has MO55 3 stamped on it.

I'm just hoping I didn't pay for a welded diff.

Is there an easy way to check without tearing it apart?

Google isn't helping much.

Thanks,

Mike