Hypercoils 13" Rear Coil Spring - 5" O.D. - 125 lb. Dayco Jet sizes selected will give

Jet sizes selected will give the broadest range of adjustment and tuning for most performance carburetor applications

Blade holder adjusts from 1" to 5"

11/16 in or Smaller Shaft

1989-1992 Chevrolet Corvette

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Hypercoils 13" Rear Coil Spring - 5" O.D. - 125 lb. Dayco Jet sizes selected will giveHypercoils are manufactured from the highest quality chrome silicone steel and high tensile chrome silicone steel available in the world. The material used in producing Hypercoils undergoes two separate magnaflux inspections. Once before manufacture and again after coiling. These inspections insure the wire is free from surface imperfections which, if gone undetected could lead to spring failure. The life of a suspension coil is directly related to