FRAME KIT 4-LINK 24

The Competition Engineering C1423 4-Link Rear Frame Kit is a specialized, weld-in rear suspension and frame upgrade designed for custom drag racing and Pro-Street chassis fabrications. This kit provides the structural foundation for a 4-link rear suspension system, requiring expert-level fabrication, cutting, and welding for installation.

This comprehensive kit features a 24-inch wide rear frame assembly constructed from 2" x 3" steel tubing with a 0.083" wall thickness. It includes a 60-inch wide crossmember, 3-way adjustable shocks (C2051), and 125 lbs./in. rate chrome silicone steel springs (2.5" I.D. x 12" L). Additional components include a 3/4" DOM steel diagonal link and a driveshaft safety loop.

Professional installation is required. The kit is designed to be cut and fitted to the specific chassis dimensions of the target vehicle. It is essential to ensure that the frame rail locations and suspension geometry align with the intended vehicle's wheelbase and drivetrain configuration. This product is intended for off-road/track use only.

The system is highly configurable and is not a direct-fit bolt-on for any specific production vehicle. It serves as a universal starting point for custom suspension geometry in full-chassis or back-half builds. The kit's structural components are engineered to withstand the torque and loading requirements of drag racing applications.