Originally Posted by Blue Streak
Esy way to see what you have, jack the rear up and spin the wheel. If both spin same direction you have a lsd.
Just dont forget to block the front wheels, and put the transmission in neutral
Two black marks is not always the best test..
I have a 10' Sport with open diff and 3.55's and can light up both tires from a dead stop on pavement too.
When I do a burnout at the drag strip I often get sideways right before staging