Bolt-On, Length 18", Collector OD 3" 2020-chevrolet-camaro-esi6216722 while the built-in Helmholtz chamber

while the built-in Helmholtz chamber helps control the interior resonance

Factory length for '70-'76 Buick 455

These control arms from UMI Performance are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body

ensuring your shocks are of the highest quality

All components plated for maximum corrosion resistance and long life

Bolt-On, Length 18", Collector OD 3" 2020-chevrolet-camaro-esi6216722 while the built-in Helmholtz chamberDesigned for use with 3 bolt collector rings, these 18" long extensions enable the racer to adjust his torque curve to suit track conditions. The kit contains two extensions, matched gaskets, and six nuts and bolts.