That's what I thought.  Thanks for the info guys.  I just finished replacing my rear spring and at the same time, I removed my catalytic converter.  Man what a difference.  My ride height problem was solved with the spring and the removal of the cat made a huge difference in the performance.  It must have been partially blocked.  I getting closer to the perfect corvette experience!

I was torn between the stock 7 leaf and composite.  I went with with a 7 leaf steel spring from Muskegon Brake.  I like the ride of the steel spring.  The spring replacement was easy.  Fighting through 30+ years of rust was the tricky part.  I also replaced my differential mount bushings, pinion seal and shocks while I was at it.  This is also a good time to check your rear universal joints.