Hotchkis 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 Powder coat. Specs Length 22.25 in.