Information High quality chassis part series products. Made with high strength steel tubing for superior strength and durability. Stable performance, reliable quality and long service life Uniform thickness, no blow holes, slag, cracks, tearing, or incomplete fion. Measured by specialized inspection tools after welding to make sure assemble hole , bhings insert, and installation sizes are proper. Professional Installer is Highly Recommended (No Instruction Included) Alignment Highly Recommended After Install Direct Replacement. Strict quality control standards to Build and test. Look for compatibility list for fitment or jt ask . Cover size is 3 3/4″ x 6 1/4″ Compatibility Chart For 1967-1982 Chevrolet Corvette Package Content 4x Master Cylinder Cover Chrome w/ Bails&Gaskets