Quite a good and easy to understand article on Open Diff follow by LSD.
Andy ..... here is the news, I have searched high & low for your Del Sol's Diff, seems like the factory did not have a LSD installed as standard (only the DC-2 Tyre R got the LSD as factory standard). I suspect we would only know if yours have a after market one by lifting up your car and hand turn the wheel to find out.
