Timbren Industries TORTUN4 Rear Suspension Enhancement System Helper Spring Kit

The Timbren Industries TORTUN4 Suspension Enhancement System is a rear helper spring kit designed to eliminate suspension sag and improve handling when towing or hauling heavy loads. This bolt-on system features Timbren's patented Aeon hollow rubber springs that deliver a progressive spring rate, automatically adjusting to load conditions to eliminate rear squat, sway, and body roll.

Key Features:

• 6,000 lb maximum load capacity for heavy-duty towing and hauling applications
• Patented Aeon hollow rubber springs with progressive spring rate technology
• Completely maintenance-free operation—no air lines, compressors, or pressure adjustments required
• Bolt-on installation in under 30 minutes with basic hand tools—no drilling required
• Black powder-coated steel mounting brackets for corrosion resistance
• Maintains ½" to 1½" gap when unloaded for comfortable empty ride quality
• Works with factory suspension to preserve soft ride while providing load support when needed

What's Included:

• 2 Aeon hollow rubber springs
• 2 steel mounting brackets
• All necessary hardware for complete installation

Unlike air bag suspension systems that require ongoing maintenance and adjustments, the Timbren SES is a true set-it-and-forget-it solution. The hollow rubber springs cannot be punctured or popped, making them ideal for off-road use and work trucks. This system improves roll stability, reduces trailer sway, cushions road shocks, and helps level your vehicle under load—all while maintaining factory ride comfort when unloaded. ISO9001:2000 certified quality ensures reliable performance backed by Timbren's lifetime warranty.

Note: This system improves suspension performance but does not increase the vehicle's GVWR (Gross Vehicle Weight Rating). Never exceed the manufacturer's weight rating.