Brazilian Dodge Dart 76 (similar to 69 usa)
mounted springs together with a plastic thin sheet between each leaf.
pictures 1-3 shows plastic and springs..
to put center pin, I used a clamp to help me. Remember, don't do it withou an adult supervision =P~=P~=P~=P~=P~=P~
I used an alley bolt to clamp all spring leafs.
the final step is just about trim plastic excess with a knife..