Progressive rate coil springs for the 1967, 1968, 1969, and 1970 Ford Mustang with a Big Block engine.
These springs give you a smooth, stock feeling ride under normal driving conditions but become firmer like performance springs as they compress during braking and cornering.
Powdercoated black.
Sold as a pair.
For cars with Small Block engines, see C7ZZ-5310-SB-PR