Either version can have them, or not. They were standard in some "is" cars, but
not all years. Many non- "is" cars had them too. The way to tell is to look
for an "S" on the diff case. To get under there you probably have to jack up
the car anyway, in which case you can just turn one of the rear wheels. If the
other one turns the same way instead of opposite, you have a LSD.
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