Eibach Platinum Modified Front Coil Spring - 5.0 in OD - 9.500 in Length - 575 lb/in Spring Rate - Silver RS004C1910 1977-1978 GMC C15 Suburban

1977-1978 GMC C15 Suburban

Added to the fuel tank

supercharged or nitrous applications where additional fuel is required to prevent lean out conditions and engine damage

Pushrod Shim Kit

Driver Side Mount

Eibach Platinum Modified Front Coil Spring - 5.0 in OD - 9.500 in Length - 575 lb/in Spring Rate - Silver RS004C1910 1977-1978 GMC C15 SuburbanEibach PLATINUM SERIES race springs are engineered using our proprietary ultra high tensile strength steel, for the lowest physical weights and maximum spring travel. More Travel Increased Travel Reduces Shear Loads and Stores More Energy Which Equals Increased Grip In and Off the Corner Ultra Lightweight for Increased Vehicle Response and More Usable Power to the Ground Each Platinum Spring is Wound to Exact Tolerances and Dyno Tested with Graph