The Ford Racing IRS wheel hub kit is built for kit-car independent rear suspension use and features a 5 x 4.5 in. bolt circle and a 2.775 in. wheel pilot. It is designed to work with the IRS knuckle kit PH M-5970-A and supplies the hub flange and pilot dimensions needed to mount a wheel in custom IRS assemblies, simplifying fitment for kit-build rear suspension setups.
Ford Racing Kit Car IRS Hub