GMC Envoy 2002-2009 Suspension Specifications
Explore detailed suspension specifications for the 2002-2009 GMC Envoy, including shock absorbers, struts, springs, and control arms. Ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 2002-2009 GMC Envoy. It is designed to assist mechanics, enthusiasts, and owners in understanding the suspension components, maintenance, and performance. Use the search functionality to locate specific terms or navigate through the sections to explore detailed information about the front and rear suspension, alignment, and key specifications.
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Key Specifications
Front Suspension Type
Independent SLA
Rear Suspension Type
Solid Axle
Front Spring Rate
150 lb/in
Rear Spring Rate
180 lb/in
Ride Height
8.5 inches
Available Specifications
Front Suspension
The front suspension of the 2002-2009 GMC Envoy is designed for durability and comfort. It features an independent short/long arm (SLA) setup with coil springs and shock absorbers. This section covers the key components, maintenance tips, and common issues.
Front Suspension
The front suspension of the 2002-2009 GMC Envoy is designed for durability and comfort. It features an independent short/long arm (SLA) setup with coil springs and shock absorbers. This section covers the key components, maintenance tips, and common issues.
Suspension Type
- Independent short/long arm (SLA) design
- Coil springs for load support
- Hydraulic shock absorbers for damping
- Stabilizer bar for reduced body roll
Key Components
- Upper and lower control arms
- Ball joints for pivot points
- Steering knuckle for wheel attachment
- Bushings for noise and vibration reduction
Rear Suspension
The rear suspension system of the GMC Envoy uses a solid axle with coil springs and shock absorbers. This section provides details on the design, components, and maintenance recommendations.
Rear Suspension
The rear suspension system of the GMC Envoy uses a solid axle with coil springs and shock absorbers. This section provides details on the design, components, and maintenance recommendations.
Suspension Type
- Solid axle design for durability
- Coil springs for load support
- Hydraulic shock absorbers for damping
- Panhard rod for lateral stability
Key Components
- Axle housing for wheel mounting
- Trailing arms for longitudinal stability
- Bushings for noise reduction
- Stabilizer bar for reduced body roll
Alignment Specifications
Proper alignment is crucial for tire wear and vehicle handling. This section outlines the recommended alignment settings for the 2002-2009 GMC Envoy, including camber, caster, and toe angles.
Alignment Specifications
Proper alignment is crucial for tire wear and vehicle handling. This section outlines the recommended alignment settings for the 2002-2009 GMC Envoy, including camber, caster, and toe angles.
Front Alignment
- Camber: -0.5° to +0.5°
- Caster: +3.5° to +4.5°
- Toe: 0.0° to +0.2°
- Cross caster: ±0.5° maximum difference
Rear Alignment
- Camber: -0.5° to +0.5°
- Toe: +0.1° to +0.3°
- Thrust angle: 0.0°
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Component Specifications
Overview
- Type
- Independent front suspension, Solid rear axle
- Configuration
- Front: MacPherson strut, Rear: Multi-link coil spring
- Platform
- GMT360
- Material
- High-strength steel and aluminum components
- Location
- Front and rear axles
Dimensions
- Front Strut Length
- 24.5 inches (622 mm)
- Rear Coil Spring Length
- 14.8 inches (376 mm)
- Front Track Width
- 63.5 inches (1613 mm)
- Rear Track Width
- 63.5 inches (1613 mm)
- Front Spring Rate
- 180 lb/in (31.5 N/mm)
- Rear Spring Rate
- 220 lb/in (38.5 N/mm)
- Shock ABSorber Travel
- 6.3 inches (160 mm)
- Ground Clearance
- 8.2 inches (208 mm)
Materials
- Front Strut
- High-strength steel with aluminum housing
- Rear Coil Spring
- Chromium-silicon alloy steel
- Control Arms
- Forged steel with rubber bushings
- Shock ABSorbers
- Steel body with hydraulic fluid
- Stabilizer Bar
- Heat-treated steel
Features
- Ride Quality
-
- Hydraulic shock absorbers
- Progressive-rate coil springs
- Rubber-isolated subframe
- Handling
-
- Stabilizer bar for reduced body roll
- Precision-engineered control arms
- Optimized suspension geometry
- Durability
-
- Corrosion-resistant coatings
- Heavy-duty bushings
- Reinforced mounting points
- Adjustability
-
- Height-adjustable rear coil springs
- Replaceable shock absorbers
- Serviceable ball joints
- Off-Road Capability
-
- Increased ground clearance
- Heavy-duty shock absorbers
- Reinforced suspension components
Safety Features
- Structural integrity
-
- High-strength steel control arms
- Reinforced subframe mounts
- Stability
-
- Electronic Stability Control (ESC)
- Traction control system
- Crash Protection
-
- Energy-absorbing front struts
- Reinforced rear axle housing
Comfort Features
- Noise Reduction
-
- Rubber-isolated subframe
- Hydraulic bushings
- Vibration Dampening
-
- Tuned shock absorbers
- Progressive-rate springs
- Ride Smoothness
-
- Independent front suspension
- Multi-link rear suspension
- Adjustability
-
- Height-adjustable rear coil springs
- Replaceable shock absorbers
Accessories
- Performance Upgrades
-
- Heavy-duty shock absorbers
- Lowering springs
- Adjustable sway bars
- Off-Road Enhancements
-
- Lift kits
- Skid plates
- Heavy-duty control arms
- Maintenance Tools
-
- Spring compressors
- Ball joint press
- Torque wrench
Maintenance
- Service interval
- Every 50,000 miles or 5 years
- Service Items
-
- Inspect shock absorbers for leaks
- Check ball joints for wear
- Lubricate suspension bushings
- Inspect and tighten all mounting bolts
- Check alignment and adjust if necessary
- Maintenance Notes
- Regularly inspect suspension components for signs of wear or damage, especially in off-road conditions.
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Covers defects in materials and workmanship
- Powertrain Warranty
- Miles: 100,000Years: 5Coverage: Covers major suspension components
- Corrosion Warranty
- Miles: 100,000Years: 6Coverage: Covers rust-through on suspension components
- Emissions Warranty
- Miles: 50,000Years: 4Coverage: Covers emissions-related suspension components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision forging of control arms
- Robotic welding of subframes
- Heat treatment of coil springs
- Quality Control
- inspection: 100% component testingTesting: Durability and fatigue testingCertification: ISO 9001 certified
- Sustainability Practices
-
- Recycled steel usage
- Eco-friendly coatings
- Energy-efficient manufacturing
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.1%Lead Time: 2 weeks
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect shock absorbers for leaks
- Check ball joints for wear
- Lubricate suspension bushings
- Inspect and tighten all mounting bolts
- Check alignment and adjust if necessary
Regular inspection is crucial for maintaining ride quality and safety.
- Replace shock absorbers if necessary
- Inspect and replace worn bushings
- Check and replace ball joints if needed
- Inspect and replace coil springs if sagging
- Perform full suspension alignment
Use OEM parts for replacements to ensure compatibility and performance.
- Replace all suspension bushings
- Inspect and replace control arms if necessary
- Replace stabilizer bar links
- Perform full suspension overhaul
- Test and recalibrate electronic stability systems
Major service intervals may require specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What suspension components are compatible with the 2002-2009 GMC Envoy?
What suspension components are compatible with the 2002-2009 GMC Envoy?
The 2002-2009 GMC Envoy is compatible with a range of suspension components, including shocks, struts, coil springs, and control arms. Ensure parts are designed for the Envoy's specific trim (e.g., SLE, SLT) and drivetrain (2WD or 4WD). OEM part numbers like 15806948 (front strut) and 15806949 (rear shock) are recommended for exact compatibility. Aftermarket options from brands like Bilstein or Monroe also offer suitable replacements.
Q2 What maintenance is required for the GMC Envoy's suspension system?
What maintenance is required for the GMC Envoy's suspension system?
Regular maintenance for the GMC Envoy's suspension includes inspecting shocks and struts every 50,000 miles, checking for worn bushings or ball joints, and ensuring proper wheel alignment. Lubricate suspension components during oil changes and replace worn parts promptly. A professional inspection is recommended annually or if you notice symptoms like uneven tire wear, excessive bouncing, or steering instability.
Q3 How do I replace the front struts on a 2002-2009 GMC Envoy?
How do I replace the front struts on a 2002-2009 GMC Envoy?
To replace the front struts, lift the vehicle and secure it on jack stands. Remove the wheel and disconnect the sway bar link and brake line bracket. Use a spring compressor to safely remove the strut assembly. Install the new strut, reassemble components, and torque bolts to factory specifications (e.g., 66 ft-lbs for strut-to-knuckle bolts). Always use a torque wrench and follow safety precautions.
Q4 What should I do if my GMC Envoy's suspension is making noise?
What should I do if my GMC Envoy's suspension is making noise?
Suspension noises often indicate worn components. Check for loose or damaged parts like sway bar links, bushings, or ball joints. Inspect shocks and struts for leaks or wear. Tighten loose bolts and replace faulty parts. If the noise persists, consult a professional mechanic to diagnose and resolve the issue, as suspension problems can affect vehicle safety and performance.
Q5 How can I optimize the suspension performance of my GMC Envoy?
How can I optimize the suspension performance of my GMC Envoy?
To optimize suspension performance, upgrade to high-quality shocks and struts like Bilstein or KYB for improved handling and ride comfort. Ensure proper tire inflation and alignment. Consider adding a rear sway bar for better stability. Regularly inspect and maintain suspension components to prevent wear and tear, and avoid overloading the vehicle to reduce strain on the suspension system.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2002-2009 GMC Envoy Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair procedures, and technical specifications for the 2002-2009 GMC Envoy.
Technical Service Bulletin: Suspension Noise Fix
Coming SoonTSB addressing common suspension noise issues in 2002-2009 GMC Envoy models, including recommended repairs and part updates.
GMC Envoy Suspension Parts Catalog
Coming SoonCatalog listing OEM and aftermarket suspension parts for the 2002-2009 GMC Envoy, including part numbers and compatibility details.
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Technical Information
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