Shock Rear GM Metric 4 Comp / 6 Reb Spring Kits While the unit could be

While the unit could be physically thicker the 40mm dimension was ultimately chosen with consideration of airflow requirements of the main radiator which is located directly behind the heat exchanger

When using wheel spacers

625 in Primary - 3 in Collector - Gaskets / Hardware Included - Stainless - Metallic Ceramic - Small Block Chevy - GM A-Body / B-Body / F-Body / G-Body / X-Body 1964-89 - Pair

81 in OD - C9-R2 Valve - Steel - Zinc Plated - Each

Shock - B6 Series - Monotube - Steel - Yellow Paint - Front - Chevy Corvette 2002-13 - Each

Shock Rear GM Metric 4 Comp / 6 Reb Spring Kits While the unit could beShock SMX Series Monotube C4 R6 Valve Steel Black Paint Rear GM A Body F Body G Body Each