Timbren TORTAC4A Rear Helper Springs for 1979-2004 Pickup/4Runner/T100/Tacoma

Vehicle Fitment

• 1979-1995 Toyota Pickup (RWD/4WD)
• 1984-1989 Toyota 4Runner (RWD/4WD)
• 1993-1998 Toyota T100 (RWD/4WD)
• 1995-2004 Toyota Tacoma (RWD/4WD)

Features

• Progressive-rate Aeon¬Æ rubber helper springs
• Rated support capacity: 6,000 lb (per axle pair)
• Zero post-installation maintenance‚Äîno air lines or adjustments
• Improves load-leveling, reduces rear sag under heavy loads
• Reduces body roll and trailer sway when towing
• Seamlessly integrates with factory suspension
• Durable steel mounting brackets
• Lifetime warranty & 100-day money-back guarantee

Specifications

• Location: rear axle helper spring
• Rated capacity: 6,000 lb per pair :contentReference[oaicite:1]{index=1}
• Material: natural rubber (hollow progressive spring) :contentReference[oaicite:2]{index=2}
• Position: rear, bolt-on using existing frame holes :contentReference[oaicite:3]{index=3}
• Unloaded clearance maintained: approx. ¬Ω‚Ä≥-1¬Ω‚Ä≥ gap :contentReference[oaicite:4]{index=4}

Included Components

• 2x Aeon¬Æ rubber helper springs
• 2x steel mounting assemblies
• All necessary installation hardware

Product Description

The Timbren TORTAC4A is a vehicle-specific rear helper spring kit engineered to enhance load-carrying and towing performance on Toyota mid-size trucks and SUVs from 1979 through 2004. Utilizing a progressive-rate Aeon® rubber spring design, it adds capacity when needed -up to 6,000 lb per axle -without changing ride comfort when unloaded. You retain ½″-1½″ clearance under light loads, ensuring factory ride quality until the spring engages.

This kit bolts directly to your existing frame and leaf suspension, requiring only basic hand tools for installation in under 30 minutes. No drilling or airline systems are required, making it maintenance-free and ideal for daily-driven trucks that also tow trailers, haul payloads, or use plows. The heavy-duty steel brackets and rubber springs are covered by Timbren’s lifetime warranty and 100-day satisfaction guarantee. Installation keeps your factory ride height unchanged.