Timbren SES Front Suspension Enhancement System for 2011-2026 Chevrolet/GMC Silverado/Sierra 2500/3500 HD - GMFK25D

Fits select 2011-2026 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks. This Timbren Suspension Enhancement System (SES) kit replaces the factory bump stops to provide superior load support and improved ride quality.

The Timbren GMFK25D uses high-performance hollow rubber springs that deliver a progressive spring rate. When the vehicle is empty, the springs do not engage, maintaining the factory ride. Under load, they compress to provide immediate support, eliminating front-end sag, reducing vehicle swaying, and cushioning road shocks. This front-end support is particularly effective for vehicles equipped with heavy accessories like snow plows or heavy-duty bumpers.

Installation is a straightforward bolt-on process that utilizes existing factory mounting points, requiring no drilling or airline routing. Unlike air bags, this SES kit is maintenance-free with no fittings to leak and no pressure to monitor.

• Eliminates front-end squat and sagging under heavy loads
• Improves overall handling and steering control
• Maintenance-free design with no airlines or compressors required
• Durable hollow rubber springs absorb road shocks and vibration
• Simple bolt-on installation using basic hand tools
• Manufacturer Part Number: GMFK25D
• Includes a lifetime warranty