😌 Reduces rear-end sag and body roll

✅ Improves load stability and towing control

🔥 Enhances ride comfort with progressive rear support

Tired of feeling your truck squat or lose stability when driving, cornering, or hitting uneven roads?

Looking to improve rear-end support, reduce sag, and enhance your overall ride comfort and control?

If your ride feels unstable, bouncy, or unbalanced during daily driving, the Rear Helper Springs Kit is designed to deliver smoother, more controlled performance every day, while providing extra stability when carrying passengers, gear, or light to heavy loads.

This progressive suspension upgrade automatically adjusts under pressure to reduce rear-end squat, improve balance, and enhance ride comfort, all while being 100% maintenance-free — meaning no air leaks, no compressors, and no adjustments needed.

Perfect for 4Runner, Lexus owners seeking a more stable, balanced, and confident ride on the road and off it.

Built from micro-cellular urethane and engineered for durability, SSR-623-40 Rear Helper Springs offer a progressive spring rate with 1,400 lb capacity at 50% compression. They compress smoothly under load, return to full height when unloaded, and distribute weight evenly across your suspension for better balance and control.

All Toyota and Lexus models feature pre-drilled frame holes. Simply position the helper springs, secure with basic hand tools, and you're done. This direct OEM replacement upgrades your factory bump stops without special equipment or professional installation.

🚀 Try it risk-free—if you don’t feel the difference, return them for a full refund, no questions asked!

While the front springs reduce nose-dive and improve steering control, the rear springs eliminate squat under load, prevent bottoming out when towing or hauling, and stop axle wrap during acceleration.

For complete suspension protection, pair with rear helper springs.

There are 2 types—choose the one corresponding to your vehicle:

• Pickup Trucks (Tacoma, Tundra, Hilux): Front SSF-604-40 + Rear SSR-610-40 (1,000 lb capacity)

• SUVs (4Runner, FJ Cruiser, Land Cruiser, GX/LX): Front SSF-604-40 + Rear SSR-623-40 (1,400 lb capacity)

✅ FEATURES:

• Reduces rear-end sag and body roll under load or towing

• Improves rear-axle stability and handling control

• Enhances ride comfort even with heavy cargo

• Progressive spring rate provides smooth, consistent damping

• Maintenance-free — no air lines, leaks, or compressors

• Easy bolt-on installation using factory mounting locations

• Reduces vibration and harsh rebound from rough terrain

• Increases load support for towing or off-road gear

⚙️ SPECIFICATIONS:

• Model: SSR-623-40

• Load Capacity: 1,400 lbs at 50% compression

• Material: Micro-cellular polyurethane

• Compression: Up to 80% of original height with full rebound memory

• Includes: Left & Right pair

✅ Compatible:

• Toyota 4Runner Lexus GX460 1998-2021

✅ Note:
For the following models, please check SSR-610-40 compatibility:

• Toyota Tacoma (4x4 & PreRunner 4x2)

• Toyota Tundra (4x2 & 4x4)

• Toyota Hilux / Hilux Vigo (4x2 & 4x4)