The 3.23(or 3.27 I forget at the moment) lsd is in my 380SLC that has another desitiny. I actually have a 3.46 in the 300TD I forgot about too(gotta love a Mercedes junk yard in your yard). But I really like to spin both tires and welded diff and towing are not a fantastic idea( not saying I wouldn't do it though)I have two na 617. On is a from a w116 I believe but now in a w108 mess and a 300TD euro car. I'll have to look at them to determine which mani it is. How much weight would you say you were pulling? This is a w126 300SD Bynthe way too.

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