Carli Suspension on Ford Super Duty: Real-World Test & Verdict

Testing Carli Suspension: Setup and First Impressions

After years of industry hype around Carli Suspension for Ford Super Duty trucks, we put it to the test on Utah's varied terrain. Camelon Ford provided this F-350 Lariat with the full Carli system: remote reservoir shocks upfront and piggyback reservoirs in the rear, paired with 37x12.5R20 tires. From initial inspection, the engineering stands out—especially the robust spring design visible in the side profile. But does it transform the driving experience? Our test aimed to find out.

Critical Components and Configuration

This setup features Carli's signature heavy-duty components specifically designed for Super Duty trucks. The remote reservoir system efficiently manages heat during extended use, while the rear piggyback configuration optimizes space. Combined with aftermarket wheels and aggressive treads, this represents a typical high-end build for serious off-road enthusiasts. Notably, the truck retained factory double-pane front windows—a smart choice that significantly reduced tire noise during our evaluation.

On-Road Performance: Stability and Handling

Driving through Park City's winding roads revealed Carli's greatest strength: eliminating the notorious rear-end shimmy common in stock Super Duty suspensions. Where base models (even Tremor editions) exhibit unsettling back-end movement, the Carli system kept the 7,000+ pound truck remarkably planted. This translated to:

Body Control and Cornering Dynamics

When pushing through uneven pavement near creek beds—where road surfaces warp from water erosion—the suspension absorbed imperfections without excessive bounce. Steering felt more precise than stock, though body roll remained present (an inevitable reality for HD trucks). The standout improvement was reduced chassis flex during aggressive cornering, creating a confident, controlled feel absent in factory configurations.

Highway Comfort and Noise Levels

At cruising speeds, the combination of Carli's damping and double-pane windows created a surprisingly refined experience. Road noise from the chunky 37" tires was well-muted, challenging perceptions about lifted truck comfort. However, on perfectly smooth pavement, the difference from a well-maintained stock suspension proved less dramatic. True value emerges when surfaces deteriorate—exactly where premium shocks earn their keep.

Off-Road Capability and Value Assessment

While our test focused on paved roads, the implications for off-road performance are clear. The suspension’s ability to maintain composure on articulated terrain suggests significant benefits for rock crawling or high-speed desert running. When traversing off-camber hills, the truck stayed composed without the unsettling side-to-side shifting typical of leaf-sprung heavy duties.

Cost vs. Competition Analysis

Carli undeniably delivers top-tier performance, but is it worth the premium? Having tested systems from Fox, Bilstein, Icon, and Multimatic, we observed comparable stability from some Bilstein setups at lower price points. You’re partially paying for the brand prestige and visual appeal—the striking reservoirs and branded components make a statement. That said, for buyers prioritizing maximum control with oversized tires, the investment is justified.

Key Takeaways and Recommendations

Our verdict? Carli transforms the Super Duty’s weakest link—its rear suspension behavior—into a highlight. The system excels at controlling unwieldy body motions, especially with heavy tires. For most users, we recommend pairing it with these supporting mods:

1. Double-pane front windows – Essential for noise reduction with aggressive tires
2. Quality 37" tires – Match to your primary terrain (mud vs. rock)
3. Professional alignment – Critical after lift installation

For serious off-roaders, Carli is a game-changer; for pavement-focused owners, Bilstein offers 90% of the benefit at 60% of the cost. Ultimately, your decision should hinge on whether you prioritize ultimate performance or value optimization.

What’s your biggest suspension challenge with your heavy-duty truck? Share your experience below—we’ll help troubleshoot common issues!