Infiniti I30 2000-2004 Suspension Specifications
Infiniti I30 2000-2004

Infiniti I30 2000-2004 Suspension Specifications

Explore detailed suspension specifications for the 2000-2004 Infiniti I30, including shock absorbers, struts, and alignment settings. Perfect for maintenance, repairs, or upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the suspension system of the 2000-2004 Infiniti I30. It is designed to assist mechanics, enthusiasts, and owners in understanding the suspension components, their functions, and maintenance requirements. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about front and rear suspension systems, alignment specifications, and key components.

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Key Specifications

Front Spring Rate

2.1 kg/mm

Rear Spring Rate

1.8 kg/mm

Front Stabilizer Bar Diameter

24 mm

Rear Stabilizer Bar Diameter

18 mm

Front Caster Angle

+3.5° to +4.5°

Available Specifications

Front Suspension

The front suspension of the 2000-2004 Infiniti I30 is designed for optimal handling and ride comfort. This section covers the key components, including the strut assembly, control arms, and stabilizer bar, along with their specifications and functions.

Strut Assembly
  • Type: MacPherson strut with coil spring
  • Shock absorber: Gas-filled, hydraulic
  • Spring rate: 2.1 kg/mm
  • Upper mount: Rubber bushing with bearing
  • Lower mount: Integrated with steering knuckle
Control Arms
  • Material: Steel with rubber bushings
  • Lower control arm: Forged steel construction
  • Bushing material: Rubber with steel sleeves
  • Ball joint: Sealed, maintenance-free
Stabilizer Bar
  • Diameter: 24 mm
  • Material: High-strength steel
  • Bushings: Rubber with steel clamps
  • End links: Ball-and-socket design

Rear Suspension

The rear suspension system of the Infiniti I30 ensures stability and smooth ride quality. This section details the multi-link setup, including the trailing arms, coil springs, and shock absorbers, along with their technical specifications.

Multi-Link Setup
  • Type: Independent multi-link suspension
  • Trailing arms: Steel with rubber bushings
  • Lateral links: Forged steel construction
  • Toe control link: Adjustable for alignment
Coil Springs and Shock Absorbers
  • Spring rate: 1.8 kg/mm
  • Shock absorber: Twin-tube, gas-filled
  • Mounting: Upper and lower rubber bushings
  • Travel: 120 mm
Stabilizer Bar
  • Diameter: 18 mm
  • Material: High-strength steel
  • Bushings: Rubber with steel clamps
  • End links: Ball-and-socket design

Alignment Specifications

Proper alignment is crucial for tire wear and vehicle handling. This section provides the recommended alignment settings for the 2000-2004 Infiniti I30, 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°
  • Steering axis inclination: 12.5°
Rear Alignment
  • Camber: -1.0° to -0.5°
  • Toe: +0.1° to +0.3°
  • Thrust angle: 0.0°

Component Specifications

Overview

Type
Independent MacPherson strut front, multi-link rear
Configuration
Front and rear independent suspension
Platform
FM platform (shared with Nissan Maxima)
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)
Front Spring Rate
180 lb/in (31.5 N/mm)
Rear Spring Rate
160 lb/in (28 N/mm)
Front Sway Bar Diameter
1.1 inches (28 mm)
Rear Sway Bar Diameter
0.9 inches (23 mm)
Wheel Travel Front
6.3 inches (160 mm)
Wheel Travel Rear
5.9 inches (150 mm)

Materials

Strut Body
High-strength steel
Springs
Chromium-silicon alloy steel
Control Arms
Forged aluminum
Bushings
Rubber and polyurethane composite
Sway Bars
Heat-treated steel

Features

Damping Control
  • Hydraulic shock absorbers
  • Twin-tube design
  • Velocity-sensitive damping
Stability
  • Front and rear stabilizer bars
  • Anti-roll control
  • Precision alignment geometry
Adjustability
  • Camber adjustment at front
  • Toe adjustment at rear
  • Ride height fixed
Durability
  • Corrosion-resistant coatings
  • Sealed ball joints
  • Reinforced mounting points
Performance
  • Sport-tuned springs
  • Low unsprung weight
  • Optimized roll center

Safety Features

Structural integrity
  • Crash-optimized mounting points
  • Reinforced subframe
Failure Prevention
  • Wear indicators on bushings
  • Corrosion-resistant materials
Stability Control
  • Integrated with vehicle stability system
  • Enhanced traction control compatibility

Comfort Features

Noise Reduction
  • Isolated subframe mounts
  • Hydraulic bushings
Vibration Control
  • Tuned damping rates
  • Multi-layer rubber mounts
Ride Quality
  • Progressive spring rates
  • Compliance-oriented geometry
Handling
  • Precise steering feedback
  • Balanced weight distribution

Accessories

Upgrades
  • Performance coilovers
  • Adjustable sway bars
  • Polyurethane bushings
Tools
  • Strut spring compressor
  • Alignment tools
  • Torque wrench
Replacement Parts
  • OEM struts and shocks
  • Replacement bushings
  • Control arm assemblies

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect struts and shocks for leaks
  • Check bushings for wear
  • Lubricate suspension joints
  • Verify alignment settings
  • Tighten all mounting bolts
Maintenance Notes
Regular alignment checks recommended after suspension work

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Defects in materials or workmanship
Powertrain
Miles: 60,000
Years: 5
Coverage: Suspension components excluding wear items
Corrosion
Miles: Unlimited
Years: 7
Coverage: Perforation corrosion only
Wear Items
Miles: 12,000
Years: 1
Coverage: Bushings, ball joints, and mounts

Production Details

Manufacturer
Infiniti (Nissan Motor Co.)
Manufacturing Process
  • Precision forging for control arms
  • Robotic welding for subframes
  • Automated assembly for struts
Quality Control
Testing: Durability testing on proving grounds, Corrosion resistance testing, Alignment verification
Standards: ISO 9001 certified, JIS D 0201 compliance
Sustainability Practices
  • Recycled materials in bushings
  • Low-VOC coatings
  • Energy-efficient manufacturing
Production Metrics
Annual Output: Approx. 50,000 units
Defect Rate: Less than 0.1%
Lead Time: 4 weeks

Service Information for suspension Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect struts and shocks for leaks
  • Check bushings for wear and tear
  • Lubricate all suspension joints
  • Verify wheel alignment settings
  • Tighten suspension mounting bolts

Alignment should be checked after any suspension work

60,000
48
  • Replace worn bushings
  • Inspect and replace ball joints if necessary
  • Check subframe for cracks or damage
  • Test shock absorber performance
  • Verify sway bar link integrity

Use OEM or equivalent replacement parts for best performance

100,000
84
  • Replace struts and shocks
  • Inspect and replace control arms if needed
  • Check and replace sway bar bushings
  • Perform full suspension alignment
  • Verify torque on all suspension components

Major service interval - consider professional inspection

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What suspension components are compatible with the 2000-2004 Infiniti I30?

The 2000-2004 Infiniti I30 is compatible with OEM and aftermarket suspension components, including struts, shocks, springs, and control arms. Key specifications include a MacPherson strut front suspension and a multi-link rear suspension. Ensure parts match the vehicle's trim level and engine type (e.g., 2.0L or 3.0L). Always verify compatibility with the manufacturer or supplier before purchase.

Q2

What are the maintenance requirements for the Infiniti I30 suspension system?

Regular maintenance for the Infiniti I30 suspension includes inspecting struts, shocks, and bushings every 30,000 miles. Replace worn components promptly to avoid uneven tire wear or handling issues. Lubricate suspension joints annually and check alignment after replacing parts. Follow the owner's manual for specific intervals and use high-quality replacement parts to ensure longevity and performance.

Q3

How do I replace the front struts on a 2000-2004 Infiniti I30?

To replace the front struts, safely lift the vehicle and remove the wheels. Disconnect the sway bar link and brake line bracket. Unbolt the strut from the steering knuckle and remove the upper strut mount bolts inside the engine bay. Install the new strut in reverse order, ensuring proper torque specifications. A spring compressor is required to safely handle the coil spring during replacement.

Q4

What are common suspension issues in the Infiniti I30 and how can I troubleshoot them?

Common issues include worn struts, noisy bushings, and uneven tire wear. Diagnose by inspecting for leaks, cracks, or play in suspension components. Test ride quality and listen for clunking or squeaking noises. Use a jack to check for loose parts. Replace worn components and ensure proper alignment. If issues persist, consult a professional mechanic for further diagnosis.

Q5

How can I optimize the suspension performance of my Infiniti I30?

To optimize suspension performance, upgrade to high-performance shocks and springs for better handling. Install polyurethane bushings for improved durability and responsiveness. Ensure proper alignment and tire pressure. Regularly inspect and maintain suspension components. Consider adding a strut tower brace for enhanced rigidity. Always balance performance upgrades with ride comfort and safety.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti I30 Service Manual

Coming Soon

Comprehensive guide covering suspension system maintenance, repair, and specifications for the 2000-2004 Infiniti I30.

Technical Service Bulletin: Suspension Noise Fix

Coming Soon

Official bulletin addressing common suspension noise issues and recommended repair procedures for the Infiniti I30.

Infiniti I30 Suspension Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket suspension components for the 2000-2004 Infiniti I30, including part numbers and compatibility information.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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