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4-1/2" Complete Suspension System

4-1/2" Complete Suspension System

GM K2500 HD Pickup 4WD 4-1/2" Lift Kit

  • *Approx Price: $1,792.04
  • Front (base kit): 4-1⁄2" High Clearance IFS
  • Rear (base kit): 3" Block Kit
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4-1/2" Complete Suspension System

Kit Components

Accessories & Pricing


Qty Part# Description
1 011319 01-10 GM HD 3in Rear Kit
1 021451 01-10 GM HD 4.5in Box Kit (2of3)
1 021452 01-10 GM HD 4.5in Box Kit (3of3)
1 021632 Standard HD Knuckle Kit
2 55605 Hydraulic Shock Absorber
2 55759 Hydraulic Shock Absorber
Qty Part# Description Price
    Total $1,792.04

Important Kit Notes

  • 1. Special torsion bar unloading tool required for installation.
  • 2. Some Welding required
  • 3. Frame bracket modification required.
  • 4. 20" wheels with 5-1/2" to 5-3/4" of backspacing recommended to reduce trimming.
  • 5. Gas models require exhaust modification
  • 6. Narrow track knuckle option will slightly increase turning radius
  • 7. If equipped with stock 17" wheels, then must replace with 17" or larger.
  • 8. Rear box kit will not fit dually applications. Larger u-bolts are necessary.

  • GM K2500 HD Pickup 4WD 4-1/2" Lift Kit

  • Front (base kit):

    4-1⁄2" High Clearance IFS

  • Rear (base kit):

    3" Block Kit

  • Kit Price

    $1,792.04

Base Kit Components

Compatible Vehicles

IMPORTANT: Kit Notes

View Instructions

Base Kit Components 192H

These components are subject to change based upon your selections.

Qty Part# Description
(1) 011319 01-10 GM HD 3in Rear Kit
(1) 021451 01-10 GM HD 4.5in Box Kit (2of3)
(1) 021452 01-10 GM HD 4.5in Box Kit (3of3)
(1) 021632 Standard HD Knuckle Kit
(2) 55605 Hydraulic Shock Absorber
(2) 55759 Hydraulic Shock Absorber

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Important Kit Notes

  • 1. Special torsion bar unloading tool required for installation.
  • 2. Some Welding required
  • 3. Frame bracket modification required.
  • 4. 20" wheels with 5-1/2" to 5-3/4" of backspacing recommended to reduce trimming.
  • 5. Gas models require exhaust modification
  • 6. Narrow track knuckle option will slightly increase turning radius
  • 7. If equipped with stock 17" wheels, then must replace with 17" or larger.
  • 8. Rear box kit will not fit dually applications. Larger u-bolts are necessary.

Next: Shock Selection


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