4000 Series Coil-Over Kit 5in

The INTEGRA SHOCKS 4000 Series Coil-Over Kit 5in is a complete suspension upgrade designed for off-road enthusiasts and performance vehicle builders who demand adjustable ride height and damping control. This coil-over system replaces factory suspension geometry with independent spring and shock tuning, enabling users to dial in their vehicle's stance and handling characteristics for both street and trail applications. Built for drivers who require precision suspension geometry and the ability to fine-tune performance without factory limitations, this kit represents a significant step toward customized vehicle dynamics.

The 4000 Series features a 5-inch OD coil spring paired with a 2-inch bore shock absorber and a 7-inch threaded sleeve, all constructed from lightweight aluminum with black anodized corrosion protection. This design allows for ride height adjustment through the threaded sleeve while the monotube shock absorber manages damping across compression and rebound cycles. The aluminum construction minimizes unsprung weight compared to steel alternatives, improving both handling response and fuel efficiency. Black anodized finish protects against corrosion and UV degradation, essential for vehicles exposed to harsh environmental conditions or frequent water crossings.

This coil-over kit is ideal for 4x4 trucks, lifted SUVs, and performance chassis seeking modular suspension geometry. The 7-inch adjustable sleeve accommodates varying ride heights from mildly lifted to aggressively lowered platforms, making it compatible with both stock and heavily modified frames. Installation requires basic mechanical skills and suspension knowledge; professional installation is recommended to ensure proper alignment and damping calibration. The compact 8.6 x 3.15 x 8.65-inch packaging and 2.4-pound weight per unit simplify transport and handling during installation.