The Wilwood 140-7675-DR is a complete front big-brake hub kit for classic GM muscle, pairing forged Dynalite calipers in red powder coat with a 12.19-inch vented, drilled rotor. FDL Big Brake Front Hub Kits provide the added advantage of larger diameter brake rotors for traditional non-ABS spindles on American muscle cars and vintage rods. That makes this kit a practical step up from drum brakes or small factory discs on a 1967-1969 Camaro, Nova, or Chevelle. The larger rotor radius and forged calipers add stopping force and heat capacity for spirited street driving and track days, and one hub assembly is simpler to install than assembling separate caliper and rotor parts.
Check fitment before ordering. The manufacturer specifies a +0.19-inch hub offset, a 15-inch minimum wheel diameter, and 5x4.50 and 5x4.75 bolt patterns on 1/2-20 studs. Its assembly sheet covers 1967 - 1972 CHEVELLE, DISC/DRUM SPINDLE applications alongside the 1967-1969 Camaro, so confirm Nova and other X-body spindles with the manufacturer. Searches for 12.19 big brake front hub kit, 67-69 Camaro drum-to-disc upgrade, and Wilwood hub offset wheel clearance match the questions this kit raises most often.
The manufacturer's install sheet lists 1967-1972 Chevelle disc or drum spindles and 1967-1969 Camaro spindles. Confirm your specific Nova or Chevelle spindle with the manufacturer before ordering, because compatibility varies by application.
Per the manufacturer, if any wheel contact surface overhangs the outside diameter of the hub face, a 6.60" x .20" steel spacer (Wilwood P/N 300-11961, sold separately) must be used.
The manufacturer recommends a 6.15" x .09" hub shield (Wilwood P/N 300-10716, sold separately) with stamped steel wheels that do not overhang the hub face, to prevent hub face damage.
The manufacturer states that installation should only be performed by persons experienced with disc brake systems, so this is best suited to a builder comfortable with spindle work. Before disassembly, the manufacturer recommends photographing the existing brake system. Verify the kit matches your exact year spindle and that the hub stud pattern matches your wheels, then use the wheel clearance diagram in the instructions to confirm fit. Tighten lug nuts to the wheel manufacturer's specification. Torque values for the caliper and bracket hardware were not confirmed on the manufacturer's documentation, so pull the current instruction sheet before torquing.
