Removes the inserts on the upper control arm alignment brackets of light duty GM trucks. Features an indexed forcing bolt that pulls straight and evenly, and works with off-center knock-outs The tool fits 1989-2001 Chevrolet and GMC 1/2-, 3/4-, and 1-ton trucks, two- or four-wheel drive . Also works on 1990-2001 all-wheel drive Chevrolet Astro vans and GMC Safari vans, 1997-2002 1/2-, 3/4-, and 1-ton full size vans.