Off-road racing, rock crawling, and high-performance suspension systems demand rod ends that can survive severe loads and repeated impacts. Standard rod ends often fail under the high torque, oversized tires, and extreme geometry of custom builds.
The 1.25" x 1" left-hand heim joint is engineered for these conditions. With a heat-treated chromoly body, 1-inch bore reinforced head, and precision bearing rated for 76,200 lbs radial static load, this 1.25 inch heim joint is built to withstand abuse while maintaining precision articulation and steering response.
Heat-Treated Chromoly Construction
This chromoly heim joint is crafted from fully heat-treated 4130 chromoly steel, selected for its strength, toughness, and fatigue resistance.
The 1.25 shank with 1-inch bore increases material around the head, minimizing deflection and maintaining geometry in high-load conditions. For racing, off-road, or heavy-duty applications, this design ensures steering and suspension components remain precise and reliable under extreme conditions.
Bearing Design for Smooth, Consistent Articulation
The joint features a 52100 heat-treated steel bearing, hard chrome plated for long-lasting performance and wear resistance. The bearing rides in a Teflon-injected nylon race, ensuring smooth low-friction articulation and eliminating metal-on-metal contact.
Benefits include:
- Predictable movement under high load
- Reduced wear and heat for extended service life
- Smooth articulation when paired with misalignment spacers
- Reliable performance for racing and off-road applications
This large bore heim joint delivers the control and durability required for professional builds.
Left-Hand Threads for Adjustable Systems
Featuring left-hand threads (reverse thread heim joint) with 1.25"-12 TPI fine thread, this rod end allows on-vehicle adjustments without removing the joint.
Advantages include:
- Quick length adjustments for suspension or steering links
- Maximum thread engagement for strength
- Reduced loosening under vibration
- Compatible with right-hand threaded rod ends for adjustable setups
Perfect for high-steer drag links, tie rods, track bars, panhard rods, and other adjustable, high-load components.
Off-Road, Racing, and Custom Fabrication Applications
This extreme duty rod end is ideal for:
- High-steer and crossover steering systems
- Drag links and tie rods
- Track bars and panhard rods
- 3-link and 4-link suspension systems
- Rock crawling, desert racing, and Ultra4 competition
- Heavy-duty custom fabrication projects
For builders and racers who need a monster heim joint that performs consistently under repeated heavy loads, this rod end is a proven solution.
Full Technical Specifications
Part Number: E 60104
Thread Size: 1.25"-12 TPI (Left-Hand Thread)
Shank Size: 1.25"
Bore Size: 1" (stronger head design)
Radial Static Load Rating: 76,200 lbs
Bearing: 52100 heat-treated steel, hard chrome plated
Housing: Heat-treated chromoly with hard chrome finish
Race Material: Teflon-injected nylon
Choice of misalignment spacers at checkout
Sold individually
Made in the USA
Maintenance & Lubrication
Proper lubrication is critical for performance and longevity.
Use: Tri-Flow lubricant only
Do Not Use: WD-40, PB Blaster, or similar oils. These products damage the Teflon liner and void the warranty.
Routine Tri-Flow lubrication keeps articulation smooth and extends bearing life.
Why Builders Choose This 1.25 Heim Joint
- 76,200 lb radial static load rating
- Oversized 1.25 shank / 1-inch bore for strength
- Fully heat-treated chromoly construction
- Precision 52100 steel bearing with hard chrome finish
- Left-hand fine thread for on-vehicle adjustment
- Built for extreme-duty off-road, racing, and custom applications
- Made in the USA
This 1 1/4 heim joint is engineered for serious builds where performance and reliability cannot be compromised.
Internal Links
FAQs
Q1: Where can I purchase this 1.25" x 1" left-hand rod end?
Purchase directly from the manufacturer here:
https://www.eastwestoffroad.com/product/1.25%22-x-1%22-rod-end-left-hand-(12-tpi)
Q2: Is this rod end suitable for steering?
Yes. This 1.25 inch rod end is ideal for drag links, tie rods, and high-steer conversions when installed correctly with spacers.
Q3: What makes the 1-inch bore stronger?
The 1.25 shank 1 inch bore increases head material, improving resistance to side loads and deflection.
Q4: Why choose a left-hand thread?
A rod end left hand allows adjustments on the vehicle when paired with a right-hand threaded rod end.
Q5: What lubricant should be used?
Only Tri-Flow lubricant should be used. WD-40 or Blaster products will damage the liner and void the warranty.