Forged Dynalite 4 Piston Big Brake Front Hub Kits offer a disc brake upgrade for OE drum spindles. Based on the Wilwood forged billet Dynalite caliper, these versatile kits can meet the braking requirements of both daily drivers and show stoppers. Intended vehicles need no modification for installation, and kits accommodate manual or power boost master cylinders with ample clearance inside 15" and larger wheels. Kits include solid or drilled rotors, calipers, hub assembly brackets, and hardware.