Blog Posts
Heavy-Duty Leaf Springs for a Smoother Ride
Zone Offroad has spent years developing the perfect leaf spring system, engineered with a 5-leaf pack design featuring anti-friction pads and center leaf spacer plates. This innovative setup minimizes internal friction, ensuring a smoother and more consistent spring rate, even on rough terrain.
Precision Steering and Brake Line Adjustments
The kit includes a 4-inch steering arm to maintain the correct factory drag link angle, keeping your truck's steering responsive and stable. Front and rear brake line relocation brackets allow for proper positioning, ensuring a safe and functional brake system after the lift.
Reinforced U-Bolts and Lift Blocks for Maximum Durability
Every kit comes with zinc-plated U-bolts with high nuts and washers, ensuring a secure connection between your suspension and axles. The rear 4-inch lift blocks provide balanced height, maintaining stability and strength without compromising towing or load capacity.
Optional Front Sway Bar Shackle Links for Added Stability
If your truck came factory-equipped with a front sway bar, Zone Offroad offers optional sway bar shackle links, accommodating lifts from 2 to 6 inches. This ensures better handling and improved control, especially when navigating uneven terrain.
Performance Features at a Glance
| Feature | Details |
|---|---|
| Front Lift | 4" Leaf Springs |
| Rear Lift | 4" Lift Blocks |
| Steering Correction | 4" Steering Arm |
| Brake System | Front & Rear Brake Line Relocation Brackets |
| U-Bolts | Zinc-Plated with High Nuts & Washers |
| Wheel Size | 15" x 8" with 3.5" Backspacing |
| Max Tire Size | 35" x 12.50" |
| Installation Time | 3-4 Hours |
Vehicle Compatibility
This lift kit is designed for 1977-1987 Chevy and GMC 3/4 ton 4WD models, including:
- Chevrolet K20/K2500 Pickup
- Chevrolet Blazer
- Chevrolet K20/K2500 Suburban
- GMC K25/K2500 Pickup
- GMC Jimmy
- GMC K25/K2500 Suburban
Important Notes for Installation
- Some models were equipped with dual front shock setups. If you want to retain auxiliary shocks, order optional auxiliary shocks available in both hydraulic and nitro variants.
- Installation requires no cutting or welding and can be completed in approximately 3-4 hours.
- Factory steering geometry is retained with the included steering arm, ensuring a smooth, controlled driving experience.
Why Choose Zone Offroad?
Zone Offroad designs premium suspension systems for serious truck enthusiasts. Every lift kit undergoes rigorous testing to ensure durability, proper fitment, and excellent ride quality. The 4-inch lift system for Chevy/GMC 3/4 ton trucks is engineered to provide the perfect balance between performance and affordability.
Final Thoughts
Give your classic Chevy or GMC truck the aggressive stance and off-road capability it deserves with Zone Offroad's 4-inch lift kit. Built for durability and engineered for performance, this kit ensures smooth handling, proper suspension geometry, and enhanced ground clearance—all while maintaining a factory-quality ride.
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