SuperPro SPF2871K Rear Subframe Void-Filler Bush Kit for 08-17 Caprice/Commodore

Vehicle Fitment

• 2008-2009 Pontiac G8 (all trims) - RWD
• 2006-2015 Holden Commodore (VE/VF series, RWD) - selected trims
• 2011-2017 Chevrolet Caprice (PPV & civilian) - RWD

Features

• High-performance polyurethane void-filler bush modules replace factory rubber sub-frame mounts for enhanced rigidity
• Specifically designed for the bottom mount of the rear sub-frame to chassis interface - reduces deflection under load
• Resistant to oils, water, coolant and extreme temperatures - engineered for long service life
• Includes precision-machined metal sleeves to maintain alignment and minimise unwanted movement
• Improves suspension geometry, enhances alignment stability and reduces premature tyre wear
• Ideal for performance builds, daily drivers with RWD, or vehicles with high-stress rear suspension usage
• Maintains NVH (noise/vibration/harshness) at near-OEM levels while increasing chassis control
• Full rear wheel alignment is recommended after installation to ensure optimal results

Specifications

• Brand: SuperPro
• Part Number: SPF2871K
• Application: Rear sub-frame void-filler bush kit - rear axle, lower mount to chassis
• Material: Engineering-grade polyurethane with corrosion-resistant metal sleeves
• Kit Contents: 4 x Polyurethane bush modules (void-filler) - install into existing mount voids
• Fitment Coverage: Confirmed for Pontiac G8 (2008-2009), Holden Commodore (2006-2015) and Chevrolet Caprice (2011-2017); coverage beyond 2017 or for other makes/unlisted trims is unconfirmed
• Installation Time: Estimated ~3 hours; rear wheel alignment required

Included Components

• 4 x Polyurethane void-filler bush modules (rear sub-frame mount positions)

Product Description

The SuperPro SPF2871K kit is designed to upgrade the rear sub-frame mount voids of select RWD performance sedans including the Pontiac G8, Holden Commodore and Chevrolet Caprice. Over time, the original soft rubber bushings at the sub-frame to chassis connection can degrade, allowing movement under acceleration, cornering or braking - leading to alignment drift, reduced tyre life and diminished rear-end stability. This kit fills those mounts with high-performance polyurethane modules that substantially reduce deflection, improve rear-end control and extend service life.

Whether you're restoring your vehicle, boosting performance, or simply addressing chassis looseness, this bush kit provides a durable and effective solution. Installation is straightforward for a competent technician: access the rear sub-frame mounts, insert the supplied polyurethane bush-modules, install the sleeves if included, torque to specification, clearance check, and then perform a full rear wheel alignment. Post-installation you should notice improved rear-end feel, sharper chassis response and more consistent suspension behaviour.

Before ordering, please verify your vehicle's exact year, model, trim, engine and drivetrain (RWD). While fitment is confirmed for the years and models listed above, compatibility for other years, trims or brands is **unconfirmed** at time of listing. A full rear wheel alignment is strongly recommended after installation for optimal results and longevity.