Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 325 lb. 4704323-10- XL For most GM mechanical speedometer

For most GM mechanical speedometer applications

Wrapping any titanium exhaust pipe

Roller Bearings

Installation time is about 4-5 hours and may vary depending on stock bushing removal technique

Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 325 lb. 4704323-10- XL For most GM mechanical speedometerUltra High Travel (UHT) Hypercoils are designed specifically for light rate high travel coil over applications (dirt & pavement). UHT designs meet the requirements of soft spring big bar set ups and remain consistent in free length & installed height. The new UHT design features a larger "body bulge" over our standard OBD designs, allowing for additional deflection, rate linearity and resistance to bowing. Currently available in 12", 14", 15" & 16"