QA1 Pro-Coil Shock Kit - Twintube - Double Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Castrol The STB018 connects the strut

The STB018 connects the strut mounts to reinforce unibody and suspension

The new 205cc flows an incredible 21 CFM more at peak flow while still averaging 7 CFM more from

Fits 1966 and 1967 Buick Gran Sport and Special models with a 6 or an 8 cylinder engine and a Saginaw manual transmission without a console

Rust Preventative

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QA1 Pro-Coil Shock Kit - Twintube - Double Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Castrol The STB018 connects the strutLooking to keep your factory truck arms, but still want coil overs for adjustable ride height? QA1's C10 bolt on rear suspension system is designed to convert trucks originally equipped with a coil spring rear suspension to coil overs. This system integrates adjustability into multiple areas so you can truly fine tune the geometry to create the perfect performance after lowering. , , By converting the coil spring rear suspension to adjustable coil