Made from 4140 heat treated steel, our 1963-87 Chevy and GMC K-Series 4wd high performance anti sway bars are designed to minimize body roll, understeer and oversteer when cornering, resulting in improved vehicle handling and control. Our anti sway bars offer all of the above without affecting your ride quality. Improved design uses endlinks to attach to the lower control arm for even more improved performance. To top that off, our sway bar ends mount wider on the control arm allowing us to achieve great performance results while keeping weight and bar diameter down