Subaru Subaru Outback 2005-2009 Suspension Specifications
Explore detailed suspension specifications for the 2005-2009 Subaru Outback, including struts, shocks, springs, and alignment data. Ideal for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 2005-2009 Subaru Outback. It is designed to assist mechanics, enthusiasts, and owners in understanding the suspension components, their functions, and key measurements. Use the search and navigation instructions to quickly locate specific details or browse through sections for a comprehensive understanding of the suspension system.
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Scroll through the sections or use the table of contents to jump to specific topics. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Front Spring Rate
2.5 N/mm
Rear Spring Rate
2.2 N/mm
Front Stabilizer Bar Diameter
20 mm
Rear Stabilizer Bar Diameter
18 mm
Ground Clearance
200 mm
Available Specifications
Front Suspension
The front suspension of the 2005-2009 Subaru Outback is designed for stability and comfort. It features a MacPherson strut system with coil springs and stabilizer bars to ensure smooth handling and reduced body roll. This section covers key components and their specifications.
Front Suspension
The front suspension of the 2005-2009 Subaru Outback is designed for stability and comfort. It features a MacPherson strut system with coil springs and stabilizer bars to ensure smooth handling and reduced body roll. This section covers key components and their specifications.
MacPherson Strut System
- Strut type: Gas-filled shock absorbers
- Spring rate: 2.5 N/mm
- Upper mount: Rubber bushing with bearing
- Lower mount: Steel with rubber insulator
- Stabilizer bar diameter: 20 mm
- Anti-roll bar thickness: 18 mm
Control Arms and Bushings
- Material: Forged steel
- Bushing type: Rubber with urethane options
- Arm length: 450 mm
- Bushing durometer: 70 Shore A
Rear Suspension
The rear suspension system of the 2005-2009 Subaru Outback utilizes a double-wishbone setup for improved ride quality and load handling. This section provides details on the components and their technical specifications.
Rear Suspension
The rear suspension system of the 2005-2009 Subaru Outback utilizes a double-wishbone setup for improved ride quality and load handling. This section provides details on the components and their technical specifications.
Double-Wishbone Setup
- Upper arm length: 300 mm
- Lower arm length: 400 mm
- Spring type: Coil with progressive rate
- Shock absorber type: Twin-tube hydraulic
- Stabilizer bar diameter: 18 mm
Trailing Arms and Links
- Material: High-strength steel
- Bushing type: Rubber with urethane options
- Arm length: 500 mm
- Bushing durometer: 75 Shore A
Suspension Geometry
This section covers the suspension geometry of the 2005-2009 Subaru Outback, including alignment settings, camber, caster, and toe angles. Proper alignment ensures optimal handling and tire wear.
Suspension Geometry
This section covers the suspension geometry of the 2005-2009 Subaru Outback, including alignment settings, camber, caster, and toe angles. Proper alignment ensures optimal handling and tire wear.
Alignment Specifications
- Front camber: -0.5° to 0.5°
- Rear camber: -1.0° to 0.0°
- Front caster: 3.5° to 4.5°
- Front toe: 0.0° to 0.2°
- Rear toe: 0.1° to 0.3°
Ride Height
- Front ride height: 200 mm
- Rear ride height: 210 mm
- Ground clearance: 200 mm
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Component Specifications
Overview
- Type
- Independent MacPherson Strut (Front), Double Wishbone (Rear)
- Configuration
- Four-wheel independent suspension
- Platform
- Subaru Legacy Platform
- Material
- High-strength steel and aluminum components
- Location
- Front and rear axles
Dimensions
- Front Strut Length
- 22.5 inches (571.5 mm)
- Rear Shock Length
- 20.8 inches (528.3 mm)
- Spring Wire Diameter
- 0.63 inches (16 mm)
- Spring Free Length
- 14.2 inches (360.7 mm)
- Sway Bar Diameter Front
- 0.98 inches (25 mm)
- Sway Bar Diameter Rear
- 0.79 inches (20 mm)
- Bushing Outer Diameter
- 1.57 inches (40 mm)
- Strut Tube Diameter
- 2.36 inches (60 mm)
Materials
- Springs
- Chrome-silicon alloy steel
- Struts
- High-strength steel with aluminum housing
- Bushings
- Polyurethane and rubber composite
- Control Arms
- Forged steel with aluminum components
- Sway Bars
- Heat-treated carbon steel
Features
- Damping
-
- Gas-charged shock absorbers
- Twin-tube design
- Variable damping rates
- Self-leveling capability
- Stability
-
- Anti-roll bars front and rear
- Reinforced subframe
- Hydraulic rebound stops
- Stability control integration
- Adjustability
-
- Camber adjustment (front)
- Toe adjustment (rear)
- Ride height tolerance
- Bushing hardness options
- Durability
-
- Corrosion-resistant coatings
- Sealed bearings
- Reinforced mounting points
- High-cycle fatigue resistance
- Performance
-
- Optimized spring rates
- Low unsprung weight
- Enhanced roll stiffness
- Improved bump absorption
Safety Features
- Structural integrity
-
- Crash-tested components
- Reinforced mounting brackets
- Fail-safe bushing design
- Stability Control
-
- Integrated with VDC (Vehicle Dynamics Control)
- Roll-over prevention
- Yaw rate compensation
- Emergency Handling
-
- Progressive spring rates
- Hydraulic bump stops
- Reinforced sway bar links
Comfort Features
- Noise Reduction
-
- Isolated subframe mounts
- Rubber-insulated bushings
- Acoustic damping materials
- Vibration Control
-
- Hydraulic engine mounts
- Tuned mass dampers
- Multi-layer bushings
- Ride Quality
-
- Progressive rate springs
- Variable damping shocks
- Optimized geometry
- Load Capacity
-
- Heavy-duty springs
- Reinforced control arms
- Increased sway bar thickness
Accessories
- Upgrades
-
- Performance coilovers
- Adjustable sway bars
- Polyurethane bushings
- Protection
-
- Strut tower braces
- Skid plates
- Suspension covers
- Maintenance
-
- Lubrication kits
- Bushing replacement tools
- Alignment kits
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect bushings and mounts
- Check shock absorber performance
- Lubricate suspension joints
- Inspect and tighten bolts
- Check alignment settings
- Maintenance Notes
- Regularly inspect for leaks, corrosion, and wear. Replace worn components promptly to maintain handling and safety.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Defects in materials and workmanship
- Powertrain
- Miles: 60,000Years: 5Coverage: Suspension components excluding wear items
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation corrosion only
- Emissions
- Miles: 80,000Years: 8Coverage: Suspension-related emissions components
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Precision forging
- Robotic welding
- Heat treatment
- Corrosion coating
- Quality Control
- Testing: Fatigue testing, Crash simulation, Environmental testingStandards: ISO 9001, JIS D 0101, SAE J2534
- Sustainability Practices
-
- Recycled materials
- Low-emission coatings
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.02%Recycling Rate: 95%
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect bushings and mounts
- Check shock absorber performance
- Lubricate suspension joints
- Inspect and tighten bolts
- Check alignment settings
Ensure proper torque specifications are used for all bolts.
- Replace worn bushings
- Inspect and replace sway bar links if necessary
- Check for corrosion on components
- Perform full suspension alignment
- Test ride quality and damping
Use OEM or equivalent parts for replacements.
- Replace shock absorbers
- Inspect and replace springs if sagging
- Check subframe for cracks or damage
- Replace all suspension bushings
- Perform comprehensive alignment
Major service may require specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the suspension system compatible with other Subaru models?
Is the suspension system compatible with other Subaru models?
The suspension system for the 2005-2009 Subaru Outback is specifically designed for this model and may not be fully compatible with other Subaru vehicles. While some components might fit similar models like the Legacy, it is recommended to verify compatibility using the vehicle's VIN or consulting a Subaru dealer. Using non-compatible parts can affect performance and safety.
Q2 What are the maintenance requirements for the suspension system?
What are the maintenance requirements for the suspension system?
Regular maintenance for the suspension system includes inspecting shocks, struts, and bushings every 30,000 miles. Replace worn-out components promptly to avoid uneven tire wear or handling issues. Lubricate suspension joints annually and check for leaks or damage. Alignment should be checked every 15,000 miles or after significant impacts to ensure optimal performance and safety.
Q3 How do I replace the rear struts on a 2005-2009 Subaru Outback?
How do I replace the rear struts on a 2005-2009 Subaru Outback?
To replace rear struts, first, secure the vehicle on a flat surface and remove the rear wheels. Support the suspension with a jack, then disconnect the strut mount bolts inside the trunk. Remove the lower strut bolts and carefully detach the strut. Install the new strut, ensuring all bolts are tightened to the manufacturer's torque specifications. Reassemble and test drive to confirm proper installation.
Q4 What should I do if my suspension makes noise over bumps?
What should I do if my suspension makes noise over bumps?
Noises over bumps often indicate worn-out struts, bushings, or sway bar links. Inspect these components for damage or wear. Tighten loose bolts and replace any damaged parts. If the noise persists, check the suspension mounts and springs. A professional inspection may be necessary to diagnose and resolve the issue effectively.
Q5 How can I improve the handling and performance of my suspension?
How can I improve the handling and performance of my suspension?
Upgrading to performance shocks or coilovers can enhance handling. Ensure proper alignment and tire pressure for optimal performance. Consider adding a rear sway bar for improved cornering stability. Regularly inspect and maintain suspension components to prevent wear and tear, which can negatively impact handling and ride quality.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2005-2009 Subaru Outback Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair, and troubleshooting for the 2005-2009 Subaru Outback.
Subaru Technical Service Bulletin: Suspension Noise
Coming SoonDetails common suspension noise issues and recommended fixes for the 2005-2009 Subaru Outback.
Subaru Outback Suspension Parts Catalog
Coming SoonCatalog listing OEM and aftermarket suspension parts for the 2005-2009 Subaru Outback.
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