Kit 4x4proyect 2.65 Prerunner Jeep Wrangler JK 1-3.5″

The 4x4project 2.65 Prerunner Jeep Wrangler JK 1-3.5″ Kit is the benchmark for the Jeep Wrangler JK (2007-2017) . Compatible with both 2-door and 4-door versions , diesel and gasoline, this 2.65″ system introduces technology previously reserved for competition to offer unprecedented stability and control.

Designed for a lift range of 1″ to 3.5″ , its Direct-Fit mounts allow for quick installation without modifications, radically transforming the dynamics of your Jeep's rigid axles.

Self-adjusting Digressive Valve

The biggest challenge for the Wrangler JK is maintaining stability with oversized tires. Our intelligent dual-piston suspension system solves this problem:

• On the road: A smooth and progressive tuning that absorbs irregularities, eliminating the harshness typical of the standard suspension.

• Off-Road: It automatically gains firmness against fast impacts, keeping the chassis level and offering exceptional resistance to bumps.

ACV Valves (Mechanical Accelerometer)

Derived from our 9200 series racing engines, the ACV valve manages oil pressure according to piston speed:

• Cavitation Control: Multiplies resistance to thermal fade by up to 60% , allowing consistent performance on dunes or fast tracks.

• Supreme Protection: Acts against large impacts on broken terrain, preventing sharp blows and protecting the chassis supports.

Indestructible 22mm Stems

We equipped 22mm rods , the same technology used in the Bypass 9300 shock absorbers of Baja-type races.

• Shielding: 3mm induction hardened with hard chrome finish.

• Maximum Strength: With a hardness of 61-63 Rockwell (HRC) , these stems are designed to withstand lateral stress and stone projections without scoring or bending.

FK Ball Joints and Hi-Degree System

We have eliminated the fragility of standard components by implementing aerospace-grade load solutions:

• FK Ball Joints: Oversized and capable of withstanding up to 39,000 lbs of radial load (150% longer service life). They include a PTFE (Teflon) strip for noise-free operation.

• Total Articulation: 16mm steel pin with tilting Hi-Degree silentblocks , allowing the suspension to articulate freely in the field without wearing out the bushings.

Thermal Management: Large Volume Bottle

Our separate bottles are 30% larger , optimizing the nitrogen chamber.

The key technical feature: A larger volume of nitrogen generates less back pressure and reduces the operating temperature (Laws of Thermodynamics), keeping the damping stable even after hours of intensive use.

Featured Technical Specifications

Customization and Protection Options

• Critical Environments: Option of stainless steel ball joints and anti-corrosion ceramic treatment for bottles.

• Control Pro: 2.5″ external compression stop with three stages of hardness.

• Custom configuration: Custom hoses and fittings available.

Elevate the standard of your Jeep Wrangler JK with the engineering guarantee of 4x4project design.