Five Star Air Filter Shield - 16 in Inside Diameter - Black Energy Release They have 1045 hardened steel

They have 1045 hardened steel ring gears

see part #81165

harder stops require less deflection to achieve a given force

2002-2003 Lincoln Blackwood

These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 396-454 applications are perfect for street and moderate race use

Five Star Air Filter Shield - 16 in Inside Diameter - Black Energy Release They have 1045 hardened steelProduct Description: Air Filter Shield 16 in Inside Diameter Handle Plastic Black Sold Individually Five Star designs and manufactures parts for Circle Track and are the leading producer of Fiberglass Bodies, Aluminum Bodies, and Steel stock car bodies, Five Star Race Car Bodies offers the highest quality body components, poly carbonate windshields, Vinyl Graphics, Headlight Decals and body installation tools for most forms of motorsport. Five Star