ICON Vehicle Dynamics Stage Suspension System for 2021-2026 Chevrolet Suburban/Tahoe & GMC Yukon/Yukon XL

This ICON Vehicle Dynamics suspension system is engineered for the 2021-2026 Chevrolet Suburban and Tahoe and GMC Yukon and Yukon XL and is offered here in the configurations ICON lists for it. Any extra part this vehicle needs, such as a differential drop or a skid plate spacer, is named under Also required so the install can be planned ahead. This listing covers part numbers K73103 (7 configurations).

Choosing your option:

• Stage (Stage 1 to Stage 4): Stage numbers are set per vehicle, and a higher stage generally adds or upgrades parts over the lower ones. The Kit contents table lists exactly what this stage includes.
• Build, Billet UCA: Billet aluminum upper control arms, built for strength and durability with on-vehicle caster and camber adjustment. The Kit contents table lists every part.
• Build, Standard: The base configuration of this stage for the vehicle.
• Build, Tubular UCA: Tubular steel upper control arms that add strength and correct front-end geometry, with extra caster built in.

What's Included:

• The ICON parts listed for this stage and vehicle in the Kit contents table

Wheels, tires, bumpers, lights and other accessories seen in photos are not included, and neither is the wheel alignment or driver-assist recalibration. Parts named under Also required for a vehicle, such as a differential drop, a skid plate spacer or a brake line kit, are sold separately.

Features

Built in Stages
Each vehicle's systems run from an entry stage upward, so the suspension can match a daily driver, a tow rig or a dedicated trail vehicle, and the stage number shows where a kit sits.

Engineered Per Platform
ICON develops each system around one vehicle's geometry, with shock lengths, valving and spring rates chosen for that platform rather than adapted from a universal kit.

Serviceable ICON Shocks
ICON shocks are fully rebuildable and re-tunable, so worn seals or a change in how the vehicle is used can be handled with a rebuild or re-valve instead of new shocks.

Adjustable Valving Options
Higher stages on many vehicles add CDCV valves with 10 compression settings, CDXS valves with separate low and high speed adjustment, or CDEV valves that ICON Intelligent Control adjusts on the move.

Upper Control Arm Choices
Where a stage adds upper control arms, choose billet aluminum arms with on-vehicle caster and camber adjustment or tubular steel arms with extra caster built in. Both correct front-end geometry at the lifted height.

Lift Quoted on Stock Vehicles
Every lift range is quoted for a stock-equipped vehicle. Bumpers, winches and other added weight change where the height settles, so allow for them when choosing a kit.

Fitment & Compatibility

Specifications

• Brand: ICON Vehicle Dynamics
• Series: Stage
• Product type: Staged suspension system
• Lift measured on: Stock-equipped vehicle
• Installation: Professional shop or service technician recommended
• Lift: 2.5-3.25"
• Lift, rear (Suburban/Yukon XL): 2.5-3.5"
• Lift, rear: 3-4"
• Lift, front (3.0L DIESEL): 2-2.75"
• Lift, front: 2.5-3.25"
• Max tire size (minor fender trimming): 33" x 12.50"
• Recommended wheel offset: 0mm
• Upper control arms (Stage 3, Billet UCA; Stage 2, Billet UCA; Stage 4, Billet UCA): Billet UCA
• Upper control arms (Stage 2, Tubular UCA; Stage 3, Tubular UCA; Stage 4, Tubular UCA): Tubular UCA
• Shaft diameter: 7/8"
• Recommended tires: 33" x 12.50" (Larger tires may fit but fender trimming and modifications may be required)
• Part numbers: K73103 (Stage 3, Billet UCA); K73101 (Stage 1, Standard); K73102 (Stage 2, Billet UCA); K73102T (Stage 2, Tubular UCA); K73103T (Stage 3, Tubular UCA); K73104 (Stage 4, Billet UCA); K73104T (Stage 4, Tubular UCA)

Fit and install notes

• Requires Recalibration of Advanced Driver Assistance Systems (ADAS) After Install
• SUV models with Magnetic Ride Control or Adaptive Air Ride need additional parts from ICON to fit this system; confirm with us before ordering

Kit contents

Installation

Type: Staged suspension system  ·  Install: Professional shop recommended  ·  Afterward: Alignment, plus ADAS recalibration on many vehicles

On this vehicle the ICON parts in the Kit contents table replace the matching factory components. Where ICON publishes instructions for this vehicle, they are summarized and linked below, including any cutting, drilling or extra parts they call for. Recheck all hardware after the first miles and periodically after that, as ICON's instructions direct.

ICON guide for part 71020:
Tools named in the guide: Floor jack, Jack stands, 21mm socket/wrench and 24mm socket/wrench
Afterward: the guide calls for a wheel alignment

ICON guide for part 78720DJ:
Tools named in the guide: Jack, Jack stands, Grinder w/cut-off wheel, Torque wrench, 3/8" 12pt socket/wrench, 10mm socket/wrench, 18mm socket/wrench and 21mm socket/wrench
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Afterward: the guide calls for a wheel alignment
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71660:
Tools named in the guide: Floor jack, Jack stands, Sharpie, Drill, 11/32 drill bit, T15 torx, 9/16 socket/wrench, 5/16 nut driver, 13, 18, 24mm socket/wrench and Torque wrench
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71657:
Tools named in the guide: Jack, Jack stands, Drill, 11/32" drill bit, Torque wrench, 5/16" nut driver, 9/16" socket/wrench, 8mm socket/wrench, 15mm socket/wrench and 18mm socket/wrench
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Afterward: the guide calls for a wheel alignment
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71605:
Tools named in the guide: Jack, Jack stands, Torque wrench, 8mm socket/wrench, 15mm socket/wrench and 18mm socket/wrench
Afterward: the guide calls for a wheel alignment
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71610:
Tools named in the guide: Floor jack, Jack stands, T15 torx bit, Torque wrench, 13mm socket/wrench, 18mm socket/wrench, 24mm socket/wrench and 9/16" socket/wrench
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 78620DJ:
Tools named in the guide: Jack, Jack stands, Grinder w/cut-off wheel, Torque wrench, 7/16" socket/wrench, 10mm socket/wrench, 18mm socket/wrench and 21mm socket/wrench
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Afterward: the guide calls for a wheel alignment
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71660C:
Tools named in the guide: Floor jack, Jack stands, Sharpie, Drill, 11/32 drill bit, T15 torx, Torque wrench, 13mm socket/wrench, 18mm socket/wrench, 24mm socket/wrench, 9/16 socket/wrench and 5/16 nut driver
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Torque: the guide gives a torque value for each fastener it installs

ICON guide for part 71657C:
Tools named in the guide: Jack, Jack stands, Drill, 11/32" drill bit, Torque wrench, 5/16" nut driver, 9/16" socket/wrench, 8mm socket/wrench, 15mm socket/wrench and 18mm socket/wrench
Modification: the guide includes cutting, drilling or grinding steps; read them before you start
Afterward: the guide calls for a wheel alignment
Torque: the guide gives a torque value for each fastener it installs

Resources

• Official ICON installation guide for part 71020 (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 78720DJ (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71660 (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71657 (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71605 (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71610 (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 78620DJ (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71660C (PDF): the ICON Vehicle Dynamics step-by-step guide.
• Official ICON installation guide for part 71657C (PDF): the ICON Vehicle Dynamics step-by-step guide.

Warranty, Shipping & Returns

Warranty. ICON shock absorbers, coilovers included, carry a 1-year warranty against manufacturer's defects, and a shock that fails in its first year goes back to ICON for inspection and service. ICON's fabricated suspension components are covered by its limited lifetime warranty. Coverage is for the original retail purchaser who owns the vehicle the parts were first installed on, and ICON repairs or replaces a defective part at its discretion. Finish, parts worn through normal use, modifications, installation contrary to ICON's instructions, racing use, police, taxi, government or commercial vehicles, and sales outside the US and Canada are excluded. Removal, installation and freight costs are not covered. ICON also requires its components to be installed as the complete kit shown in its application guide; substituting or leaving out required parts voids the warranty. The Delta Joint and Delta Joint PRO in ICON upper control arms carry their own terms: 5 years for the Delta Joint when it is registered within 30 days of purchase, and 1 year for the Delta Joint PRO. Shipping. The carrier and ship method are set by the size and weight of the cartons when the order is placed. Larger systems can ship in several cartons or by freight. Inspect on delivery. Open every carton when it arrives and check each part and hardware bag against the parts list before the install starts. Note any visible carton damage on the delivery receipt and photograph it, because damage reported later is much harder to claim.

Returns. Unused items in their original packaging can be returned within 30 days of delivery. If an item arrives damaged, defective or wrong, return shipping is on us. See our Returns & Refunds Policy, or email support@prestigetruck.com with any question.

About ICON Vehicle Dynamics