Eibach Stage 1 vs Stage 2R: In-Depth Toyota Tundra Suspension Comparison
Posted by Sean Reyes on
When it comes to upgrading your Toyota Tundra's suspension, choosing the right kit can make all the difference in both daily driving and off-road performance.
We recently had the opportunity to work with Jeff, who has been extensively testing Eibach's suspension systems on his new Tundra. After months of testing the Stage 1 kit, we helped him upgrade to the Stage 2R system, and the differences are noteworthy.
The Test Vehicle: A Do-It-All Tundra
Jeff's Tundra serves as the ultimate family adventure vehicle. Whether it's hauling dirt bikes, towing a side-by-side trailer, or taking the family on trail adventures, this truck needs to do it all.
The current setup includes:
- 315/70/17 tires
- Method MR318 wheels with +25 offset
- Basic lighting upgrades
Breaking Down the Stage 1 Kit
The Stage 1 kit includes:
- Eibach front and rear shocks
- Front and rear springs
- Expected lift measurements:
- Rear: 1.1 inches
- Front: 2.6 inches (with potential for 3.2 inches, though not recommended)
Stage 1 Performance Review
While the Stage 1 kit offers decent performance in some areas, Jeff's experience revealed some limitations. The positive aspects included excellent handling characteristics and impressive small bump compliance. However, the system showed its weaknesses when pushed harder, particularly in the front end where frequent topping out became an issue.
The root cause? The Stage 1 struts share similar dimensions with stock TRD Off-Road components, limiting available droop travel to around two inches. While the ride height did settle slightly after a couple of months of use, adding cargo or taking the vehicle off-road amplified the suspension's limitations.
Stepping Up to Stage 2 and Stage 2R
What's Included
- Stage 2: Everything from Stage 1, plus front coilovers
- Stage 2R: Adds reservoir rear shocks to the Stage 2 package
One of Eibach's strengths is their modular approach - components can be purchased individually, making gradual upgrades possible without financial penalty. The coilover upgrade alone can be purchased separately for Stage 1 owners looking to improve their setup.
Key Improvements
The Stage 2 coilovers offer significant advantages:
- Adjustable lift from 0.8 to 3.2 inches
- Approximately 6 inches more shock length
- Nearly an inch more wheel travel
- Better droop travel even at maximum lift compared to Stage 1 at minimum lift
- Pre-loaded design eliminates the need for spring compressors
- Fine-tunable ride height adjustments while installed
The Stage 2R Advantage
The reservoir rear shocks in the Stage 2R kit provide:
- More linear piston design vs. the digressive valving in non-reservoir shocks
- Enhanced comfort for off-road use
- Improved bottoming control
- Better heat management
Technical Considerations
For Tundra owners considering these upgrades, it's important to note the axle configurations:
- Base models: Black axles with tripod design
- TRD Off-Road and Pro: Red axles with Rzeppa joints
- TRD Silver: Extended version of the red axles
While the Stage 2 system should work with black axles, we strongly recommend adding a differential drop kit for $35. This affordable upgrade helps prevent binding, especially with larger tires, and simplifies installation.
Final Thoughts
The upgrade from Stage 1 to Stage 2R represents a significant improvement in suspension performance and capability. While the Stage 1 kit offers a solid entry point, the Stage 2R's additional travel, improved valving, and superior heat management make it the clear choice for those who frequently take their Tundras off-road or demand maximum performance from their suspension system.
For those starting their suspension upgrade journey, we recommend going straight to Stage 2 if budget allows. The improved performance and versatility make it worth the additional investment. However, Eibach's modular approach means you can start with Stage 1 and upgrade later without any financial penalty.
