Why Ground Clearance Matters for Your Jeep Grand Cherokee Trailhawk

The Jeep Grand Cherokee Trailhawk is already one of the most capable factory off-road SUVs, with an 11.3-inch ground clearance that gives it a strong starting point. However, serious off-roaders know that every inch counts when traversing rocky trails, deep ruts, or uneven terrain. Even a modest increase in ground clearance can reduce the risk of damaging the undercarriage, improve approach and departure angles, and allow the vehicle to tackle obstacles that would otherwise require careful line selection. Whether you’re building an expedition vehicle or simply want to avoid scraping on forest roads, understanding how to raise your Trailhawk’s ride height is essential.

This guide walks through the most effective methods for increasing ground clearance on the Trailhawk, from suspension lifts and tire upgrades to smaller modifications that collectively improve off-road capability. We also cover the practical considerations every owner should evaluate before cutting, lifting, or swapping parts.

Understanding Ground Clearance on the Trailhawk

Ground clearance is measured from the lowest point of the vehicle’s undercarriage to the ground when the tires are properly inflated and the suspension is at rest. On the Jeep Grand Cherokee Trailhawk, the lowest points are typically the front suspension crossmember, the transfer case skid plate, and the rear differential. The stock Trailhawk rides 1–2 inches higher than other Grand Cherokee trims thanks to its factory air suspension (on models so equipped) or Quadra-Lift system, plus unique bumpers and skid plates.

Increasing ground clearance can help in three key areas:

  • Approach, breakover, and departure angles – A higher ride height reduces the chance of the front bumper or rear hitch contacting obstacles.
  • Underbody protection – More space between the ground and critical components like the oil pan, transmission, and exhaust reduces the likelihood of impacts.
  • Wheel articulation – Additional clearance allows you to fit larger tires, which can improve traction and help the suspension flex over obstacles.

While the Trailhawk’s factory setup is impressive, many owners find that a lift of 1.5 to 3 inches transforms the vehicle into a far more capable off-roader without sacrificing daily drivability.

Methods to Increase Ground Clearance

Suspension Lift Kits

Suspension lifts are the most effective way to raise the entire chassis of the Trailhawk. They work by altering the mounting points of the suspension components, such as springs, struts, and control arms. There are several types of suspension lifts available:

  • Spacer lifts – Polyurethane or aluminum spacers sit on top of the strut assembly to increase ride height by up to 2 inches. They are affordable and easy to install, but they do not improve suspension travel or damping. Best for those who want a mild lift without replacing springs or shocks.
  • Coil spring lifts – Replacement springs with a higher spring rate and longer free length provide a true lift. Paired with properly valved shocks, this setup offers better articulation and load-carrying ability. Brands like Old Man Emu (ARB) and BDS Suspension offer complete coil spring kits for the Trailhawk.
  • Long-arm lifts – For extreme clearance gains of 3 inches or more, long-arm kits replace the factory control arms with longer units that reposition the axle and improve suspension geometry. This is an advanced modification that significantly changes ride quality and requires cutting and welding.

Most Trailhawk owners find a 2–2.5 inch suspension lift hits the sweet spot, allowing fitment of 33-inch tires without major trimming. Keep in mind that lifting the vehicle higher than 3 inches may require additional driveline modifications, such as a transfer case drop or adjustable track bars, to maintain proper alignment.

Body Lift Kits

A body lift raises the body of the SUV relative to the frame using spacers placed between the body mounts and the frame. While less common on unibody SUVs like the Grand Cherokee, certain aftermarket manufacturers offer body lifts for the WK2 platform. These lifts add 1–2 inches of clearance by raising the fenders, bumpers, and undercarriage components that are attached to the body. However, they do not increase axle clearance or improve suspension travel. Body lifts are often combined with a small suspension lift for a total increase of 2–3 inches without overly stressing components. Note that body lifts can create gaps between the frame and body, requiring extended bumper brackets and sometimes a skid plate reconfiguration.

Upgrading Shocks and Struts

High-performance shocks not only improve ride quality over rough terrain but can also provide a modest increase in ride height if they are longer than stock and paired with lift springs. For the Trailhawk, popular aftermarket options include:

  • Fox 2.0 Factory Series – These remote-reservoir shocks offer excellent heat dissipation and tunable damping. They maintain factory ride height when used with stock springs but can be spec’d for lift applications.
  • Bilstein 5100 – Height-adjustable in the front and designed for lifted rears, the 5100 series is a cost-effective way to level the Trailhawk and improve clearance by up to 1 inch.
  • King Shocks and others – Custom-valved shocks for severe off-road use can maximize suspension travel, but they are overkill for most daily drivers.

When upgrading shocks, always match them to the lift height and intended use. A shock that is too long for a small lift may bottom out, while one that is too short can limit droop and negate clearance benefits.

Installing Larger Tires

Larger tires are the simplest way to increase ground clearance because they raise the entire vehicle as the tire radius grows. For every 1-inch increase in tire diameter, you gain approximately 0.5 inches of additional ground clearance at the axles. The Trailhawk can typically accommodate up to 32–33-inch tires (stock is about 31.5 inches) with minor modifications, but fitting 33s may require:

  • Removing the front air dam or trimming the lower bumper
  • Installing wheel spacers (1–1.5 inches) to prevent rubbing at full turn
  • Recalibrating the speedometer and transmission shift points using a programmer like Superchips or Hypertech
  • Selecting aggressive all-terrain or mud-terrain tires with proper load ratings

Popular tire choices include the BFGoodrich KO2, Goodyear Wrangler Duratrac, and Nitto Ridge Grappler. Always verify compatibility with your Trailhawk’s wheel offset and suspension setup before purchasing.

Adjusting or Replacing Skid Plates

The stock Trailhawk skid plates protect the fuel tank, transfer case, and front suspension, but they also hang a few inches below the frame rails. Removing or trimming these plates can gain up to 1 inch of clearance in certain areas, but doing so leaves vital components exposed. A better approach is to install aftermarket skid plates that are thinner, more contoured, or made from high-strength aluminum. Brands like Asfir and Metal Cloak offer skid plates that offer the same protection as the stock steel while sitting closer to the undercarriage. Alternatively, some owners choose to remove the front skid plate when driving on extremely rocky terrain and reinstall it for trailering or daily driving. However, this is not recommended for consistent off-road use because the risk of oil pan damage is high.

Other Modifications That Affect Ground Clearance

Differential Skid Plates and Off-Road Bumpers

Upgrading to an aftermarket front bumper with a higher clearance allows the Trailhawk to approach obstacles at a steeper angle. Many aftermarket bumpers tuck the winch mount and recovery points closer to the frame, effectively increasing the bumper’s ground clearance. Similarly, replacing the rear bumper or removing the factory tow hitch can improve departure angle. Differential skid plates protect the axle housing from impacts while also smoothing out the underside profile, allowing you to slide over rocks rather than catching on them.

Sway Bar Disconnects

While sway bar disconnects do not directly raise the vehicle, they allow the suspension to fully articulate, which reduces the chance of a tire lifting off the ground. When a tire loses contact with the ground, the vehicle’s effective ground clearance decreases because the underbody can tilt and scrape. Quick-disconnect sway bar links (manual or electronic) for the Trailhawk enable the front axle to droop more freely, keeping all tires on the ground and thus maximizing available clearance. Many owners pair a 2-inch suspension lift with sway bar disconnects for a noticeable off-road advantage.

Important Considerations Before Modifying

Warranty Implications

Modifying the suspension or drive components can void portions of your Jeep warranty. Under the Magnuson-Moss Warranty Act, a manufacturer must prove that an aftermarket part caused a failure before denying warranty coverage. However, lifting the Trailhawk often strains CV joints, tie rod ends, and the braking system. Check with your Jeep dealer before making changes, and keep records of all aftermarket parts and professional installations. Some dealers are mod-friendly, especially if you use Jeep Performance Parts or Mopar accessories.

Each state has its own laws regarding maximum vehicle lift height and bumper height. In many states, a lift of 3 inches is permissible without requiring additional fender flares or mud flaps, but anything higher may need a safety inspection or special registration. Your tires also must not protrude beyond the fenders. Before selecting parts, consult your state’s Department of Motor Vehicles or a local off-road shop to ensure compliance. Non-compliant lifts can lead to fines, failed inspections, and liability issues in accidents.

Professional Installation vs. DIY

Installing a lift kit on a modern Grand Cherokee involves more than just bolting on parts. The Trailhawk’s electronic air suspension (if equipped) must be disabled or deleted properly to avoid error codes and droop issues. Even coil-over suspension models require precise alignment adjustments, torques, and sometimes welding. While a spacer lift is within reach of an experienced DIYer, a full suspension lift is best performed by a shop that specializes in Jeep WK2 platforms. Improper installation can lead to driveline vibrations, poor handling, and premature component wear. Budget for an alignment and possible re-gearing if tire diameter increases by more than 5%.

Additional Tips for Improved Off-Road Performance

Drive Technique and Angles

Ground clearance alone does not solve clearance issues. Approach angle, breakover angle, and departure angle are equally critical. When approaching a rock or a ledge, angle the Jeep to one side to lift a front wheel, reducing the effective approach angle. Similarly, avoid crawling over tall objects with both front wheels at the same time. Practice picking lines that keep the vehicle’s belly away from obstacles. A lift helps, but techniques like two-wheeling or straddling high spots make better use of the clearance you have.

Tire Pressure Management

Airing down your tires on the trail lowers the tire’s center of gravity and allows the tire to conform to terrain. This effectively increases ground clearance because the tire doesn’t get pushed up by sharp rocks—it molds around them. For the Trailhawk, reducing pressure to 18–22 psi (depending on tire sidewall construction) improves traction and underbody clearance by preventing the chassis from bottoming out on ledges. Always carry a portable air compressor to reinflate before hitting pavement.

Suspension Maintenance After Lifting

Lifted Trailhawks place additional stress on ball joints, bushings, and CV axles. Inspect these components every 5,000 miles or after every heavy off-road trip. Common issues include premature wear of the front lower control arm bushings and clicking CV joints. Replacing worn parts with heavy-duty aftermarket options (such as Moog or Spicer) can extend the life of the suspension. Additionally, re-torque all lift kit bolts after the first 500 miles of driving, as components settle.

Conclusion

Improving ground clearance on your Jeep Grand Cherokee Trailhawk is a rewarding upgrade that unlocks more challenging trails and adds confidence on rough terrain. The most effective methods—suspension lifts, larger tires, and thoughtful bumper/skid plate modifications—can raise the vehicle by 2–3 inches without sacrificing daily drivability if done correctly. Always weigh the trade-offs between lift height, maintenance costs, and legality, and invest in quality parts from reputable suppliers. With careful planning and professional installation, your Trailhawk can tackle terrain that would leave stock SUVs scraping for mercy. Start with a modest 2-inch lift and 33-inch tires, and you will feel the difference the first time you cross a washout or climb a rocky shelf.