These laser cut brackets for the mustang II spindles will support the GM Brembo CTS-V1 (2004-2007) conversion and also the 1998-02 camaro LS1 brakes. These brackets can be used with stock or aftermarket spindles. The installation requires welding the upper mounting stud to the bracket once the assembly is final. We have used our std 5×4.75 hub with this conversion that is popular with brake swaps on this spindle from many other suppliers. This CTSV-1 conversion will require using the 2010-15 camaro ss rotors. The rotor pilot hole will need enlargement to fit the GM based hub, we offer this service or you can have a local machine shop perform this for you. Large 18″ wheels with offset spokes for Brembo calipers required. The LS1 brakes do not require any modifications and fit most 16″ wheels. Rear brembo conversions are also available for many popular axles.