Wilwood 140-15983-DR FNSL6R Front Brake Kit 14" Rotors for GM A/F/X Body

The Wilwood 140-15983-DR is a high-performance front disc brake kit engineered specifically for use with Wilwood AFX Pro Spindles. This premium braking system combines FNSL6R billet forged six-piston calipers with 14.00-inch rotors to deliver exceptional stopping power and aggressive styling for classic GM muscle cars.

Key Features:

• FNSL6R billet forged six-piston calipers for maximum clamping force and heat dissipation
• 14.00-inch diameter rotors provide increased thermal capacity and braking surface
• Designed exclusively for Wilwood AFX Pro Spindles (sold separately)
• Compatible with 1964-1972 GM A Body, 1967-1969 GM F Body, and 1968-1974 GM X Body vehicles equipped with AFX Pro Spindles
• Requires 18-inch or larger wheels for proper fitment
• Available in multiple caliper finish options to match your build style
• Choice of rotor designs for optimized performance and appearance

This brake kit is ideal for custom show cars, high-performance street machines, and dual-purpose street/track vehicles that demand superior braking performance. The six-piston caliper design ensures even pad wear and consistent pedal feel, while the large-diameter rotors maximize heat dissipation during aggressive driving. When combined with modern tire and suspension upgrades, this system transforms the braking capability of classic GM platforms to meet contemporary performance standards.

Important: This kit requires Wilwood AFX Pro Spindles and is designed for 18-inch minimum wheel diameter. Verify wheel clearance before installation.