1.5" Upper Control Arm Kit w/Dirt Logic Shocks for 2025-26 Trailboss, AT4 1500

The Fabtech 1.5″ Dirt Logic System is built for Trail Boss and AT4 owners who expect more from their truck than just a good-looking stance. Kit #K1223DL adds 1.5 inches of lift while bringing Fabtech’s proven Dirt Logic coilover technology to the front of your truck for improved control, handling, and off-road performance. Whether you’re pounding dirt roads, hitting the trails, or putting in work every day, this system delivers the rugged performance and durability you expect from Fabtech. It’s a serious suspension upgrade for truck owners who want better capability without going with an extreme lift.

Fabtech Dirt Logic 2.25 shocks are pre-tuned for each Fabtech suspension lift kit, accounting for larger tires, providing the finest all around damping. These shocks feature a 2.25” OD stainless steel body with 2.0” OD Billet aluminum piston and 7/8” NitroSteel® Black Piston Rod.

Dirt Logic 2.5 Coilovers offer the ultimate in damping capacity. These 2.5 Coilovers include cold wound coil springs for the best possible ride. The Dirt Logic 2.5’s have been ride tuned by Fabtech’s shock engineers to provide a superior highway ride with outstanding damping.

Kit Components
Front Dirt Logic 2.5 Resi Coilovers
Upper control arms
1.5" rear block and u bolt kit
Rear Dirt Logic 2.25 shocks

Kit Features
Value priced system with Fabtech quality
Increased ground clearance
Made in the USA
Extended range upper ball joints provide a smooth quiet ride
Increased fender clearance compared to a Leveling Kit for tall tires
Suspension can be restored to stock
Easy installation

View Installation Instructions