Fabtech 2019+ GM C/K1500 3in Alum. UCA System w/Bearing Rod Ends w/Dirt Logic 2.5 Resi Coilovers & Dirt Logic 2.25 Shocks

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Your Price: $3,678.02
Retail Price:$4,367.64
You Save:$689.62(16%)

Install Time: 2-3 Hours

Part Number: FAB-K1147DL
Availability: Special Order - Lead Time Not Available

This high end 3" lift system is an excellent choice for Silverado and Sierra owners looking to improve their vehicle’s offroad suspension performance and run 33" tall tires. The system will handle severe offroad use yet provides a supple highway ride for daily drivers. It’s the best of both worlds.

This system utilizes high quality 6061 aluminum Upper Control Arms with stunning machine work and superior strength. They utilize large PTFE lined 1" ID Stainless Steel Uniball bearings and 17-4 Stainless Steel pins that are designed for punishing offroad driving.

For top level offroad performance, high quality FK 3/4" heim ends are offered to eliminate control arm deflection. These FK 3/4" heims create a solid mounting point to the frame for the UCA with unsurpassed longevity.

The heart of this 3" system is the legendary stainless steel Dirt Logic 2.5 Coilover shocks with Remote Reservoirs. These Coilovers are built of the highest quality materials and will surpass all shocks in corrosion resistance due to the stainless steel body and NitroSteel® piston rod. They will provide an outstanding ride quality both on and offroad.

Rear lift comes from 1.5" blocks and u-bolts with Dirt Logic 2.25 shocks for a balanced ride. Dirt Logic shocks are the only stainless steel body shock on the market that provide maximum corrosion resistance in harshest conditions.

This high end 3" system will provide maximum suspension performance and comes with a 5 year 60,000 mile powertrain warranty.


  • Billet aluminum Upper Control Arms eliminate factory upper ball joint w/ super strong 1" ID FK stainless steel American Uniball for increased suspension strength
  • Precision machined billet 6061 aluminum Arms reduces flex found in stock arms for more positive road feel
  • Adjustable 3/4” ID FK Alloy American Heims attach to frame pockets allowing for increased caster and camber adjustment
  • Dirt Logic shock features stainless steel body and NitroSteel® piston rod for maximum corrosion resistance
  • Strengthens vehicle’s suspension and increases wheel travel for rugged offroad use
  • Bolt on installation with ability to return to stock
  • Capped Uniball Cup Design
  • Free 5 year 60,000 Mile Powertrain Warranty

Tires & Wheels

  • Tire Size – 33/12.50R18 Wheel Size – 18×9 w/ 5? BS w/minor trimming
  • Tire Size – 295/65R18 Wheel Size – 18×9 w/ 5? BS w/minor trimming
  • Tire Size – 33/12.50R20 Wheel Size – 20×9 w/ 5? BS w/minor trimming
  • Tire Size – 295/55R20 Wheel Size – 20×9 w/ 5? BS w/minor trimming


From our desert racing experience the Dirt Logic 2.5 has been developed for exceptional performance in a variety of Coilover applications. The Dirt Logic 2.5 will provide incredible dampening capacity for aggressive offroad driving.

  • 2.5? OD Stainless Steel Body
  • 2.25? OD Billet Aluminum Piston
  • 7/8? NitroSteel® Black Piston Rod
  • Cold Wound Coil Springs
  • Adjustable Coilover Construction
  • 5/8? Spherical Ball Mounting Ends
  • 2.50? OD Aluminum Reservoir w/-8 Stainless Steel O-ring Hose


Dirt Logic 2.25’s are designed to replace factory shocks with a larger, more robust configuration. The 2.25 size is what separates it from other replacement take apart shocks for a superior ride, both on and off road. Shocks are pretuned for each Fabtech suspension, accounting for larger tires, providing the finest all around damping.

  • 2.25? OD Stainless Steel Body
  • 2.0? OD Billet Aluminum Piston
  • 7/8? NitroSteel® Black Piston Rod
  • Polyurethane Mounting Ends

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