I bought new bilstein shocks like speedysnake stated. They made the car too rough in rear for me but would be great for track racing. Went back to stock shocks. The 69 bettle shocks were the right size but you have to cut down lower bolt sleaves. I used a saw saw and worked fine. I sent my bilsteins to vintage. If you want a firm ride in the rear use bilsteins. Just be prepared for the big differance.
tom