Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 100 lb. HM-M1 Standard studs are dimensionally the

Standard studs are dimensionally the same as OEM and different length studs are available

Due to popular demand from non-Ford enthusiasts

1969-1973 Chevrolet C10 Suburban

Schoenfeld header gaskets are die cut and notched for water temp fittings

but moves the alternator closer to the center of the engine for narrow frames

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 100 lb. HM-M1 Standard studs are dimensionally theUnlike our assist springs, our helper springs are specifically designed to have a minimal effect on the spring rate of the main coilover spring. Helper springs allow the spring to stay on mounted on the coilover perch when the shock is under negative or zero load, also known as droop travel. It is ideal to run helper springs on setups where you cannot preload the main spring due to height issues or when experiencing springs coming loose from the