A Grenadier suspension upgrade should start with one decision: do you need more ride height, better damping, or more load support? Those are different jobs. Eibach's 1.7-inch front / 1.2-inch rear spring kit is tested with the factory dampers, while replacement dampers from Fox, Radflo, and Nimbus address control and heat management. Any ride-height change also changes driveline geometry, so Eibach's driveshaft warning belongs in the decision—not buried after the install.
- More clearance: use a vehicle-specific spring kit and measure the actual ride-height change after installation.
- Better body control: compare replacement dampers separately from lift height.
- Loaded rear axle: choose springs for the measured permanent load rather than using lift height as a proxy for spring rate.
- After installation: inspect driveline clearance and follow the suspension manufacturer's instructions for the parts fitted.
Start With the Factory Baseline
The Grenadier uses solid axles, coil springs, and separate dampers front and rear. Before buying parts, record the vehicle's current hub-to-fender measurements and its normal permanent load. Measure on level ground at the specified cold tire pressures, with the same fuel level and carried load before and after the change. A winch, drawer system, rear carrier, roof tent, or towing tongue load can change the measured result of the same spring kit.
Separate the goal from the hardware: springs establish ride height and support load; dampers control suspension motion. Replacing one does not automatically solve the job of the other.
Eibach Pro-Lift Springs
Agile Offroad's current Grenadier listing identifies an Eibach Pro-Lift spring set at approximately 1.7 inches front and 1.2 inches rear. The listing says the springs were tested with the factory dampers and recommends pairing them with Eibach reservoir shocks.
Eibach's Grenadier fitment information lists its front dampers for 0–2.5 inches of lift and its rear dampers for 0–1.5 inches. The same listing warns: “Damage could occur to factory drive shaft with change in ride height.” In other words, 2.5 inches is a fitment range for the damper, not a promise that every driveline will be trouble-free at that height. Use the instructions supplied with the exact part number and inspect the driveline after installation.
My current thinking is to go with a front steering stabilizer, 285/75/17 BFG's and at least a 1.7" lift on Eibach springs, or maybe 2.5" if I can live with the added risk of wear and tear to the front driveshaft.
— avidtest, “Suspension Upgrade Options,” The INEOS Forum, November 2024
That is the practical choice: take the moderate lift, or accept more driveline angle in exchange for additional clearance. Eibach's warning applies either way.
Replacement Damper Options
Fox
Owners in the linked forum thread discuss Fox 2.5 Performance Elite DSC dampers as an adjustable option. The high- and low-speed compression controls are adjusted at the damper or reservoir; there is no in-cabin mode switch. One owner chose Fox because Agile Offroad was handling the installation and alignment, and because he preferred the firmer road feel he expected from the Fox setup.
Nimbus
Nimbus offers four vehicle-specific oleo-pneumatic suspension units for the Grenadier. Nimbus says nitrogen supplies a progressive spring response while hydraulic oil provides damping. Forum member tenac reports that Nimbus recommended retaining the OEM springs so the shock mounts do not carry the entire load. Ask Nimbus to confirm the spring setup for your vehicle and permanent load before ordering.
Why One Change at a Time Matters
Suspension reviews get muddy when springs, dampers, tires, alignment, and the steering stabilizer all change on the same day. The truck may feel better, but the driver cannot tell which part produced which result.
With the kings it feels a lot more positive on the road, less body roll and a smoother ride. I made the mistake of doing the shocks and the stabiliser at the same time so my driving experience is vastly different to stock.
— dokatd, The INEOS Forum
That admission makes the review more useful, not less. If you want to know whether a damper solved body roll or whether the stabilizer changed steering effort, test the truck between changes and write down the result.
Installation and Post-Install Checks
- Use the instructions supplied with the exact spring or damper part number.
- Measure ride height before and after the vehicle settles with its normal operating load.
- Check hose, ABS-wire, driveshaft, and joint clearance through the suspension's usable travel.
- Perform an alignment and compare the results with the vehicle specification.
- Reinspect fasteners and flexible components at the interval stated by the component manufacturer or installer.
How Suspension Height Affects DVA Roof and Access Hardware
A lift does not increase the vehicle's roof-load rating or the rating of a roof system. Added height does make roof access harder, and every accessory still counts against the applicable vehicle limits. DVA's DualTrack-T™ MAX (Gen 2) Cross Bar Rail Kit mounts at the Grenadier's factory roof attachment locations; the live DVA page rates the four-rail kit at 300 lb dynamic and 600 lb static, while stating that the vehicle roof structure remains the overall ceiling. Confirm the ceiling for the exact Grenadier variant and count the mounting system itself within that limit.
DVA's hinge-mounted Side Steps provide a dedicated roof-access point. The live product page specifies cold-rolled steel, a 250+ lb load capacity, spring locking in the deployed and stowed positions, and compatibility with both Wagon and Quartermaster variants.
Decision Framework
- Weigh or document the permanent load carried by the vehicle.
- Define whether the target is clearance, damping, or load support.
- Choose a vehicle-specific component with published fitment for the intended ride height.
- Have the installer document baseline measurements, alignment results, and post-install clearances.
- Follow the exact manufacturer's inspection and service instructions.
Sources
- Eibach Grenadier application search and fitment notes
- Agile Offroad: Eibach Pro-Lift springs for INEOS Grenadier
- Nimbus: Oleo-pneumatic suspension for INEOS Grenadier
- The INEOS Forum: “Suspension Upgrade Options,” started November 27, 2024
- DVA DualTrack-T MAX live product page
- DVA Side Steps live product page
The DVA Setup for a Lifted Grenadier
Keep roof hardware within the vehicle limit—and keep it reachable.
DualTrack-T MAX creates a no-drill mounting platform at the factory roof locations. Hinge-mounted Side Steps provide a dedicated access point after added ride height makes the roof harder to reach.
View DualTrack-T MAX →View Side Steps
