Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 225 lb. 2010187 and 351C engines with a

and 351C engines with a C4 or C6automatic transmission

Supply the needed TPS signal to an electronic transmission while still retaining a carburetor

2020-2021 Chevrolet Silverado 2500 HD Standard Cab Pickup

Positive Hose Retention

The 12-930 is rated for continuous duty service and have been tested up to 2

Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 225 lb. 2010187 and 351C engines with aOptimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. The results are in and they are simply incredible: More Deflection Less Weight Increased Rate Linearity More Resistance to Bowing Fits All