The SPC Pro Coil lowering springs for 1964–1972 GM A-body cars offer handling improvement and a lowered stance with front springs dropping about 1.3" and rear springs around 1.0". Epoxy-coated in diamond black and sold as a complete vehicle package, these springs are engineered to retain their rates; use SPC height spacers when pairing with lower arms to fine-tune ride height.
SPC Performance 64-72 GM A Body Pro Coil Lowering Springs