Hey all,
I'd like to know how one can identify a 560SL/SEL/SEC LSD differential as opposed to a non-LSD differential. I know there's supposed to be a "256" code or something on the car itself, but since I will be hunting for parts in a junkyard I'd like to know if there were any physical differences between the diff housings or any codes ON the diff I can refer to? Thanks...

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