WOD Chromoly Four-Link Rod End Kit – 1-1/4" Shank, 1" Bore to 3/4" Bolt
FL114134
The WOD 1-1/4" Chromoly Four-Link Rod End Kit is built for heavy vehicles, competition buggies, high-horsepower rock crawlers, and suspension systems subjected to extreme impact and shock loading. Designed around massive 1-1/4" shank chromoly rod ends with 1" bores, this kit delivers the strength and fatigue resistance required when smaller joints are no longer enough.
Each kit includes eight rod ends, matching jam nuts, and sixteen stainless steel high-angle misalignment spacers that reduce the 1" rod end bore for use with 3/4" mounting hardware. Four left-hand-thread and four right-hand-thread rod ends allow link length to be adjusted by rotating the suspension link without removing it from the vehicle.
With a radial static load rating of 76,200 lbs and a 2.625" installed width, this kit is designed for properly engineered front or rear four-link systems using 7075 aluminum suspension links or heavy-wall steel links.
Includes:
- (8) 1-1/4" Shank Chromoly Rod Ends with 1" Bore
- (4) Left-Hand-Thread Rod Ends
- (4) Right-Hand-Thread Rod Ends
- (8) Matching Jam Nuts
- (16) Stainless Steel High-Angle Misalignment Spacers for 3/4" Bolts
Note: The rod ends have a 1" bore. The included misalignment spacers reduce the installed bolt size to 3/4". Suspension links, threaded bungs, mounting tabs, bolts, and brackets are sold separately.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Wide Open Design |
| Product Type | Heavy-Duty Four-Link Rod End Kit |
| Rod End Material | Chromoly Steel |
| Shank / Thread Size | 1-1/4" |
| Rod End Bore | 1" |
| Installed Bolt Size | 3/4" |
| Installed Width with Spacers | 2.625" |
| Spacer Type | High-Angle Misalignment Spacer |
| Spacer Material | Stainless Steel |
| Thread Direction | Left-Hand and Right-Hand |
| Left-Hand Rod Ends | 4 |
| Right-Hand Rod Ends | 4 |
| Total Rod Ends | 8 |
| Total Misalignment Spacers | 16 |
| Radial Static Load Rating | 76,200 lbs |
| Application | Front or Rear Four-Link Suspension |
Four-Link Rod End Kit Comparison
| Shank Size | Rod End Bore | Installed Bolt Size | Radial Static Load |
|---|---|---|---|
| 3/4" | 3/4" | 3/4" | 28,081 lbs |
| 7/8" | 3/4" | 3/4" | 43,486 lbs |
| 7/8" | 3/4" | 5/8" | 43,486 lbs |
| 1-1/4" | 1" | 3/4" | 76,200 lbs |
| 1-1/4" | 1" | 1" | 76,200 lbs |
Radial static load ratings describe the stated capacity of the rod end under a static radial test. They do not represent the safe working load of the complete suspension system. Final capacity depends on link material, thread engagement, mounting hardware, brackets, welding, geometry, fatigue, impact loading, and vehicle use.
Fitment
Universal Fitment
Common Applications:
- Front four-link suspension systems
- Rear four-link suspension systems
- Heavy rock crawlers
- Competition rock bouncers
- Ultra4 and off-road race vehicles
- Large-tire trail rigs
- Heavy custom tube chassis buggies
- 7075 aluminum suspension links
- Heavy-wall steel suspension links
- High-horsepower and high-shock-load builds
Fitment Notes:
- Designed for suspension links using compatible 1-1/4" threaded bungs or machined link threads.
- Rod ends have a 1" bore and use the included spacers to accept 3/4" mounting bolts.
- Finished installed width with spacers is 2.625". Verify bracket inside width before ordering.
- Use one left-hand and one right-hand rod end on opposite ends of each suspension link to allow on-vehicle adjustment.
- Maintain sufficient thread engagement inside each suspension link or threaded bung.
- Tighten all jam nuts after final suspension alignment.
- Cycle the suspension through full compression, droop, steering movement, and articulation before final assembly.
- Verify that the rod end body, shank, and spacers do not contact the mounting tabs throughout suspension travel.
- The 3/4" bolts, tabs, welds, and links must be sized for the expected vehicle loads.
- Mounting bolts, suspension links, threaded bungs, tabs, and brackets are not included.
FAQ
When should I use a 1-1/4" rod end?
A 1-1/4" rod end is intended for heavy vehicles, large tires, high horsepower, long suspension links, and competition applications that generate severe impact and shock loads. It provides substantially greater shank strength and stated radial load capacity than smaller 3/4" or 7/8" joints.
Why use a 1" bore rod end with a 3/4" mounting bolt?
The included high-angle spacers reduce the 1" rod end bore to accept common 3/4" suspension hardware. This allows builders to use a larger, stronger rod end while retaining brackets and tabs designed around 3/4" bolts.
Does this rod end have a 3/4" bore?
No. The rod end has a 1" bore. The stainless steel misalignment spacers install inside the bore and reduce the final mounting bolt size to 3/4".
Why is installed width important?
The assembled rod end and spacer package measures 2.625" wide. That dimension must match the inside width of the suspension tabs. A bracket that is too narrow can bind or preload the joint, while a bracket that is too wide will require different spacers or additional fabrication.
What do high-angle misalignment spacers do?
High-angle spacers reduce the bore to the required bolt size while narrowing the mounting width and creating clearance around the rod end body. This allows greater angular movement before the joint contacts the mounting tabs.
Why use left-hand and right-hand threads?
Opposite thread directions at each end of the suspension link allow link length to be adjusted by rotating the link body. This simplifies setting wheelbase, pinion angle, caster, axle position, and suspension alignment.
Is the 3/4" mounting bolt the limiting component?
The complete suspension connection is only as strong as its weakest part. The rod end may have a stated radial static load of 76,200 lbs, but the 3/4" bolt, spacers, tabs, welds, threaded bungs, and suspension link must all be properly designed for the expected loads.
What is radial static load?
Radial static load is measured with force applied perpendicular to the rod end bore during a static test. It does not account for repeated fatigue cycles, impacts, side loading, bending, loose hardware, or poor suspension geometry.
How much thread engagement should be maintained?
The rod end should retain substantial thread engagement inside the suspension link or threaded bung at the final adjustment length. Avoid running the shank near the end of its threads, where bending loads and thread damage become more likely.
Can this kit be used with 7075 aluminum links?
Yes. These rod ends can be used with properly engineered 7075 aluminum links or heavy-wall steel links machined or fitted with compatible threads.
How do I prevent rod end binding?
Mock up the complete suspension and cycle it through full compression, droop, steering movement, and side-to-side articulation. The joint must retain sufficient angular movement without contacting the tabs or placing the shank in bending.
