Timbren GMFK15CA Front SES Suspension Kit for 07-15 Chevy Silverado/GMC Sierra

Vehicle Fitment

• 2007-2015 Chevrolet Silverado 1500 (4WD, all cab/bed configurations)
• 2007-2015 GMC Sierra 1500 (4WD, all cab/bed configurations)

Fitment Notes

• Front-axle helper spring kit only -- for trucks with original front suspension geometry.
• Designed to support additional front-end load (e.g., snow-plow, winch bumper, heavy accessories).
• Kits bolt on using frame-mount brackets; no drilling or air system required.
• Does not alter rear suspension -- rear springs/ride remain stock unless separately upgraded.

Features

• Progressive-rate hollow rubber springs: increase stiffness as load increases.
• Reduces front-end sag, sway, and roll under heavy load or uneven weight distribution.
• Improves handling, steering control, and ride stability when towing or carrying heavy cargo.
• Maintains smooth, compliant ride when unloaded -- no harsh ‚Äúhelper spring‚Äù harshness.
• All-steel mounting brackets and hardware ensure secure, durable install.
• Simple DIY install with basic hand tools -- typically ‚⧠30 min per side.
• No maintenance required (unlike air-bag systems). Set-and-forget helper springs.
• Backed by Timbren Lifetime Warranty -- built for long-term durability and heavy-duty use.

Specifications

• Part Number: GMFK15CA
• Kit Type: Front Suspension Enhancement System (helper springs)
• Load Capacity: rated to support heavy front-end loads (plow, winch, bumper, etc.)
• Spring Type: Hollow rubber (progressive-rate Aeon¬Æ springs)
• Mounting: Frame-mount steel brackets + rubber springs + hardware
• Installation: Bolt-on (no drilling or air lines needed)
• Warranty: Lifetime (defects in materials/workmanship under normal use)

Included Components

• 2x Hollow rubber helper springs (left & right)
• 2x Steel frame mounting brackets
• All required hardware (bolts, washers, brackets)
• Installation instructions

Product Description

The Timbren GMFK15CA SES Suspension Enhancement System adds progressive-rate rubber helper springs to the front suspension of 2007-2015 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. When you carry heavy front-end loads -- like snow plows, heavy bumpers, or winches -- the system activates automatically: the harder the load, the greater the spring’s resistance, which keeps the front end level and reduces sag, sway, and roll. When unloaded, the springs remain uncompressed, preserving factory ride comfort and handling.

Installation is simple and bolt-on -- no drilling or air systems needed. The kit uses robust steel brackets and progressive hollow-rubber springs to handle heavy-duty duty reliably. Whether you tow, plow snow, or add aftermarket accessories, the GMFK15CA helps maintain ride quality, steering control, and axle geometry under load. Backed by a lifetime warranty, it's an excellent upgrade for Silverado/Sierra owners who want load-adaptive suspension support without the complexity of airbags or leaf-spring add-ons.