QA1's Torque Arms feature strong tubular construction and a graphite/polyurethane front bushing to reduce wheel-hop caused by excessive flex under hard accelerations and cornering. Adjustable Torque Arms are built from 1" x .120" wall tubing. They feature 3/4" spherical rod ends, allowing easy pinion angle adjustment. Powder coated black for durability with grade 8 bolts. Made in the USA. Fits vehicles with GM corporate 10-bolt rear ends in which front locator of stock torque arms has lips facing away from driveshaft. Can be used on 1982-83 Camaro/Firebird with 1984 or newer mount.