Chromoly 4-Link Rod End & Heim Joint Kits
Build a stronger, cleaner 4-link suspension system with matched chromoly rod end kits designed for off-road suspension links, trailing arms, and custom chassis applications. Wide Open Design kits combine heavy-duty heim joints with the correctly matched spacers and hardware needed to simplify suspension link setup and reduce guesswork during fabrication.
Choosing the correct rod end kit depends on shank size, bore size, mounting bolt diameter, misalignment requirements, and the loads placed on the suspension. Whether you're building a rock crawler, buggy, trail rig, or race chassis, properly sized rod ends and spacers are critical to articulation, suspension geometry, and long-term durability.
| Spec | What It Means | Why It Matters |
|---|---|---|
| Shank Size | Thread diameter of the rod end | Determines link strength and tube adapter compatibility |
| Bore Size | Hole through the rod-end ball | Must match the spacer and mounting hardware |
| Bolt Size | Final mounting bolt diameter | Determines bracket and chassis mount compatibility |
| Misalignment Spacer | Reduces bore size and increases articulation angle | Helps prevent binding through suspension travel |
| Thread Pitch | Fine or coarse thread specification | Must match the link or tube adapter |
| Rod End Material | Commonly chromoly for high-load off-road use | Affects strength, wear, and service life |