Hotchkis 73-77 GM A-Body Lower Trailing ArmsHotchkis Sport Suspension 1306 1973 1977 GM A Body Lower Trailing Arms. Hotchkis Performance lower trailing arms for your 73 77 GM A Body improve traction reduce wheel hop and improve handling and stability. Designed as direct replacements for weak stock trailing arms Hotchkis trailing arms feature TIG welded construction from one piece of parent material quiet operating greasable polyurethane bushings sway bar mounts and a powder coated finish. Black