PowerStop K5528-26 Rear Z26 Brake Kit Pontiac G8 / Caprice / Chevy SS

Vehicle Fitment

• 2008-2009 Pontiac G8 GT (6.0L V8, RWD) - with 321mm front rotors
• 2009 Pontiac G8 GXP (6.2L V8, RWD) - with 355mm front rotors
• 2011-2017 Chevrolet Caprice (6.0L V8, RWD - All trims including PPV)
• 2014 Chevrolet SS (6.2L V8, RWD)

Fitment Notes

• Rear axle kit only - all models in this fitment share the same rear rotor on the Zeta platform
• The G8 GT fitment note (321mm vs. 355mm front rotors) applies only to the front brake distinction - the rear rotor is identical across all G8 GT and GXP models, so both are covered by this rear kit regardless of front rotor size
• For the matching front Z26 kit on the G8 GT (321mm front), see PowerStop K5529-26; for the G8 GXP (355mm front), see K2948-26
• 5-lug bolt pattern (5x120mm)
• No special modifications required - direct bolt-on installation

Features

• Z26 Street Warrior Carbon-Fiber Ceramic pad compound delivers superior stopping power - well matched to the performance character of the G8, Caprice, and SS on this shared Zeta platform
• Drilled & slotted vented rear rotors maximize heat dissipation and clear gas and debris from the friction surface
• Z26 friction compound resists fade up to 1,500°F for reliable performance under repeated hard braking
• Low-dust formula for cleaner wheels without sacrificing pad bite
• Stainless-steel shims provide heat dissipation and noise-free braking
• Silver zinc dichromate plated rotors resist rust and corrosion
• G3000 grade iron castings built to strict OE tolerances for crack resistance and durability
• Includes premium stainless-steel installation hardware and high-temp ceramic brake lubricant
• Bolt-on upgrade - no modifications needed

Specifications

• Kit Coverage: Rear Only
• Rear Rotor Outside Diameter: 12.76 in. (324 mm)
• Rotor Construction: Full Cast Iron - G3000
• Rotor Type: Vented
• Surface Type: Drilled & Slotted
• Rotor Finish: Silver Zinc Dichromate Plated
• Stud/Lug Hole Quantity: 5
• Bolt Circle Diameter: 5x120 mm
• Pad Compound: Z26 Street Warrior Carbon-Fiber Ceramic
• Pad Shims Included: Yes - Stainless-Steel

Included Components

• 2x Rear Drilled & Slotted Zinc-Plated Brake Rotors
• 1x Rear Z26 Street Warrior Carbon-Fiber Ceramic Brake Pad Set (with stainless-steel shims & hardware)
• 1x Stainless-Steel Installation Hardware Kit
• 1x High-Temperature Ceramic Brake Lubricant

Product Description

The PowerStop K5528-26 Z26 Street Warrior Rear Brake Kit is a rear brake upgrade for the Zeta-platform performance sedans - the 2008-2009 Pontiac G8 (GT and GXP), the 2011-2017 Chevrolet Caprice (including PPV), and the 2014 Chevrolet SS. All of these share the same rear rotor, making this kit a universal rear fit across the entire platform. The Z26 Street Warrior Carbon-Fiber Ceramic pads deliver higher brake torque and superior thermal stability versus stock - a meaningful upgrade for spirited street driving, track days, or demanding police/fleet use on the Caprice PPV.

Note that the G8 GT fitment note referencing 321mm vs. 355mm front rotors is a front-axle distinction only - both G8 GT variants use the same rear rotor covered by this kit. G3000 iron rotors are precision-cast to OE tolerances for a direct bolt-on fit. For the Z23 version of this rear kit, see K5528. For a complete front and rear Z26 upgrade on the G8 GT (321mm front), pair with K5529-26 front.