This exclusive design incorporates the latest technological advances in 4-link dimensioning, tuning and efficiency. By using 1/2" bolts in the brackets, we moved the holes closer together - providing much finer adjustment than was possible before. To accomplish this, we use a custom-made, 1/2" bore Billet Urethane rod end. The 3/16" thick axle brackets have a 3" hole and feature a built-in lower wheelie-bar mount, a lower antiroll-bar mount and a double-shear, adjustable lower shock mount. Our billet-aluminum lower shock mounts 6227 and 6247 are adjustable in 5/8" increments for fine tuning ride height. Requires 6214 shock-mount spacer kit. Our Eliminator II Pro Street 4-link uses the same geometry as our Standard Eliminator II 4-link. Instead of spherical bearing rod ends it uses billet steel rod ends with urethane bushing liners. In addition, one end of each link tube uses a urethane lined weld eye, which virtually eliminates the possibility of the rod end rattling loose, causing the link bar to fall off. The bars are direct threaded 1-1/4" x .156 wall tube to accommodate the huge 1" shank billet rod ends. These rod ends are strong enough for blown street cars and offer plenty of flexibility for street driven vehicles. Like all Chassisworks 4-links, this version comes with a map of all intersect points and tuning instructions to simplify adjustments. Use track locater 6249 to center the rear end housing in the chassis. This 4-link fits all Chassisworks Eliminator II 3x2" rear subframes and chassis. BARE METAL FINISH