Centric 320.65079F Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor Overview

Centric GCX Elemental Protection Disc Brake Rotor Full Coating, part number 320.65079F, is built for rear brake service on select Ford heavy-duty applications. It combines OE-style dimensions with a fully coated finish to help resist rust on exposed surfaces while maintaining the braking surface needed for consistent pad contact.

For drivers searching for a rear brake rotor for Ford E-350 Super Duty, Ford E-350 Econoline, or Ford F-150 rear applications, this rotor is engineered around the vehicle’s original fit and metallurgy profile. The 320.65079F is part of Centric’s GCX FC line, which focuses on application-specific coating patterns and OE-matched rotor construction.

Key Features

• Part number 320.65079F
• Centric GCX Elemental Protection Disc Brake Rotors - Full Coating
• Rear disc brake rotor for select Ford trucks and vans
• Fully coated disc finish with coated hat for added corrosion resistance on non-mating surfaces
• Vented rotor design with smooth surface type
• Outside diameter: 326.0 mm (12.835 in)
• Nominal thickness: 30.0 mm (1.181 in)
• Discard thickness: 28.0 mm (1.102 in)
• 8-lug pattern with 145.0 mm bolt circle diameter
• Pillar vane style and floating/DIH disc mounting

Product Line Details

Centric GCX and GCX FC rotors are application-specific, with coating patterns selected to work with the brake pad friction type and metallurgy matched to OEM-style requirements. Centric uses enhanced carbon and high carbon alloy formulations across the GCX line to align rotor construction with the vehicle’s original brake system profile.

Detailed Description

The Centric 320.65079F rear brake rotor is designed for vehicles that need a direct-fit replacement with corrosion protection on exposed surfaces. Its fully coated finish helps protect the hat and other non-mating areas from rust, while the smooth braking surface supports normal pad-to-rotor contact. This rotor measures 326.0 mm in outside diameter, 110.7 mm in overall height, and uses an 8-lug, 145.0 mm bolt circle layout.

Compatible With 2001-2007 Ford E-350 Super Duty, rear; 2002-2005 Ford E-350 Club Wagon, rear; 2004 Ford F-150 Heritage, rear; 2001-2003 Ford F-150, rear; and 1999-2000 Ford E-350 Econoline, rear. It also covers 1999-2000 Ford E-350 Super Duty, rear, plus 1999-2002 Ford E-350 Econoline Club Wagon, rear applications. This part cross-references Raybestos Brakes 66834FZN for the same application.

What It Helps Address

• Rear brake rotor rust on exposed surfaces
• Brake pulsation caused by worn or below-spec rotors
• Noise or uneven braking from rotor surface wear
• Fitment issues when replacing an OE-style rear rotor on select Ford E-Series and F-150 models
• Corrosion buildup on the hat and non-mating rotor areas

Installation Notes and Tips

Verify rotor dimensions, lug count, bolt circle, and rear axle configuration before installation. This rotor is listed for rear position only and is not supplied with bearings or an ABS tone ring. Confirm pad condition and inspect caliper hardware, hub surfaces, and wheel studs during brake service to help ensure proper rotor seating.

Quality Assurance

Centric engineers the GCX line to match OE performance targets and vehicle-specific metallurgy requirements. The GCX FC coating system is applied to non-mating surfaces to support long-term appearance and corrosion protection on the brake rotor.