G8 / SS Rear Control Arm Nut – Miscellaneous M12x1.75mm

Description

2008-2009 Pontiac G8 & 2014-2017 Chevrolet SS Rear Suspension M12x1.75mm Nut | Genuine GM 11516078

Ensure your rear suspension is reassembled the right way with this Genuine GM M12x1.75mm flange nut (GM #11516078). Designed for a variety of suspension mounting locations, this factory nut is commonly used on upper and lower rear control arms, rear trailing arms, and other rear suspension components found on the Pontiac G8 and Chevrolet SS.

Because this fastener is classified by GM as a one-time-use (torque-to-yield) nut, it is recommended to replace it anytime it has been removed during suspension service. Installing a new OEM nut helps maintain the proper clamping force and ensures your suspension components remain securely fastened.

Whether you’re replacing worn bushings, installing new control arms, upgrading your suspension, or completing a full rear-end rebuild, using the correct factory hardware helps restore your vehicle to original GM specifications.

Features

• Genuine GM OEM hardware
• GM Part Number: 11516078
• M12 x 1.75mm thread pitch
• Factory flange-style locking nut
• Recommended by GM as a one-time-use fastener
• Helps maintain proper suspension clamping force
• Ideal for suspension repairs, restorations, and performance upgrades

Common Applications

This nut is used in numerous rear suspension locations, including:

• Upper rear control arms
• Lower rear control arms
• Rear trailing arms
• Additional rear suspension mounting points

Vehicle Fitment

• 2008 Pontiac G8
• 2009 Pontiac G8
• 2014 Chevrolet SS
• 2015 Chevrolet SS
• 2016 Chevrolet SS
• 2017 Chevrolet SS

Always verify your application before ordering, as this hardware is used in multiple locations depending on vehicle configuration.

When servicing your suspension, don’t reuse old hardware. Replace worn or previously torqued fasteners with genuine GM components to ensure proper fit, factory-level reliability, and long-lasting performance.