The Swift spring is a barrel design spring which eliminates spring bowing allowing a more consistent spring rate. Unlike other barrel design springs whose diameter can change with spring rate swift springs feature a 4" maximum diameter allowing consistent suspension clearance every time. Feature fewer coils than typical straight springs providing you with less unsprung mass and increased stroke.
PRELOAD RINGS FOR SWIFT SPRINGS
Greatly reduce the effort and time needed to make spring changes and adjustments after their initial loading. Before jacking up the car, install the retainer rods, then raise the car and easily remove the spring. Install the new spring already preloaded, set the car down and remove the rods. These are a must have on cars using the “big bar / soft spring” package with Swift springs.
Howe
Racing Enterprises
3195 Lyle Road
Beaverton, Michigan 48612