Fabtech FTS835012 Dirt Logic 4.0 Piggyback Coilover

The Dirt Logic 4.0 FTS835012 is a large-format front coilover intended for suspension systems engineered around its specific length and mounting points. A piggyback reservoir supports its high-capacity damper construction without the separate hose routing of a remote-reservoir version.

One assembly is supplied under this replacement-shock part number; a complete lifted front axle normally uses two matched units plus its vehicle-specific brackets and steering hardware. Confirm the exact Fabtech lift configuration before selecting this coilover rather than treating an eight-inch lift label as universal fitment.

Verified Specifications and Package

• One Dirt Logic 4.0 front piggyback-reservoir coilover
• 4-inch stainless-steel shock body and billet-aluminum piston
• 1.25-inch NitroSteel piston rod, cold-wound spring and spherical mounting ends
• Extended 28.30 inches; collapsed 19.25 inches; stroke 9.05 inches
• Piggyback reservoir configuration (not remote-hose type)

Intended Application

Component used in specified Fabtech eight-inch Ford Super Duty front-lift systems; check application by Fabtech kit and vehicle configuration.

Fitment and Installation Restrictions

One side only, not a pair, and no complete lift or mounting component boxes. Vehicle year alone is insufficient for compatibility.

What Is Included

One individual front coilover assembly.