I have been running the Currie Johnny Joint rear axle ear bushings for a year now. I absolutely love them. Purchased them from Marcus at SC&C. They compliment the Currectrac billet lower and adjustable uppers I have. This setup makes the rear end movement feel very smooth and predictable.
hows the ride from them, harsh or unnoticable
Wolfe Racecraft is another that makes these style bushings
72 buick skylark
twin-turbo fuel injected buick 350..perhaps stroked to 370 in the works!