Lexus SC 1991-2000 Suspension Specifications
Explore detailed suspension specifications for the 1991-2000 Lexus SC, including shock absorbers, springs, and alignment settings. Ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 1991-2000 Lexus SC. It is designed to assist enthusiasts, mechanics, and owners in understanding the suspension components, configurations, and performance characteristics. Use the search and navigation instructions to quickly locate specific details or browse through the 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 Suspension Type
MacPherson Strut
Rear Suspension Type
Multi-Link
Shock Absorber Type
Gas-Filled
Spring Type
Coil Springs
Sway Bar Diameter (Front/Rear)
24mm/16mm
Available Specifications
Front Suspension
The front suspension of the 1991-2000 Lexus SC is designed for optimal handling and comfort. This section covers the key components, including the strut assembly, control arms, and bushings, along with their specifications and functions.
Front Suspension
The front suspension of the 1991-2000 Lexus SC is designed for optimal handling and comfort. This section covers the key components, including the strut assembly, control arms, and bushings, along with their specifications and functions.
Strut Assembly
- MacPherson strut design for compact packaging and stability
- Gas-filled shock absorbers for improved damping
- Coil springs with progressive rate for balanced ride quality
- Upper strut mounts with integrated bearings for smooth steering
Control Arms and Bushings
- Forged aluminum lower control arms for reduced weight
- Rubber bushings for vibration isolation
- Ball joints for precise wheel alignment
- Reinforced mounting points for durability
Rear Suspension
The rear suspension system of the Lexus SC ensures stability and comfort. This section details the multi-link setup, including the trailing arms, lateral links, and shock absorbers, along with their roles in handling and ride quality.
Rear Suspension
The rear suspension system of the Lexus SC ensures stability and comfort. This section details the multi-link setup, including the trailing arms, lateral links, and shock absorbers, along with their roles in handling and ride quality.
Multi-Link Setup
- Independent multi-link design for precise wheel control
- Trailing arms to manage longitudinal forces
- Lateral links for lateral stability
- Adjustable camber and toe settings for alignment
Shock Absorbers and Springs
- Twin-tube gas shocks for consistent damping
- Coil springs with linear rate for predictable handling
- Rear sway bar for reduced body roll
- Isolated mounting points for noise reduction
Suspension Tuning and Performance
This section explores the suspension tuning and performance characteristics of the Lexus SC, including ride comfort, handling dynamics, and aftermarket upgrade options.
Suspension Tuning and Performance
This section explores the suspension tuning and performance characteristics of the Lexus SC, including ride comfort, handling dynamics, and aftermarket upgrade options.
Ride Comfort
- Tuned for a balance of comfort and sportiness
- Low NVH (Noise, Vibration, Harshness) levels
- Hydraulic bump stops for smooth transitions
- Optimized damping rates for various road conditions
Handling Dynamics
- Responsive steering feedback
- Minimal body roll during cornering
- High lateral grip for confident handling
- Stable under braking and acceleration
Aftermarket Upgrades
- Adjustable coilover kits available
- Upgraded sway bars for enhanced stiffness
- Polyurethane bushings for improved precision
- Performance shock absorbers for track use
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Component Specifications
Overview
- Type
- Independent double-wishbone
- Configuration
- Front and rear
- Platform
- Toyota Z30
- Material
- High-strength steel and aluminum
- Location
- Integrated chassis mounting points
Dimensions
- Front Track Width
- 59.8 in (1519 mm)
- Rear Track Width
- 59.6 in (1514 mm)
- Front Spring Length
- 14.2 in (361 mm)
- Rear Spring Length
- 13.8 in (350 mm)
- Front Shock Travel
- 5.9 in (150 mm)
- Rear Shock Travel
- 6.3 in (160 mm)
- Front Sway Bar Diameter
- 1.1 in (28 mm)
- Rear Sway Bar Diameter
- 0.8 in (20 mm)
Materials
- Control Arms
- Forged aluminum
- Springs
- High-tensile steel
- Shock ABSorbers
- Steel with hydraulic fluid
- Bushings
- Rubber and polyurethane
- Sway Bars
- Chromoly steel
Features
- Adjustability
-
- Manual ride height adjustment
- Camber adjustment
- Toe adjustment
- Damping
-
- Hydraulic shock absorbers
- Twin-tube design
- Variable damping rates
- Stability
-
- Front and rear sway bars
- Anti-roll system
- Reinforced mounting points
- Durability
-
- Corrosion-resistant coatings
- Sealed ball joints
- Heavy-duty bushings
- Performance
-
- Sport-tuned springs
- Low unsprung weight
- Optimized geometry
Safety Features
- Structural integrity
-
- Reinforced subframe
- Crash-resistant mounting points
- Stability Control
-
- Integrated with ABS
- Electronic stability program
- Failure Protection
-
- Redundant bushings
- Sealed joints
Comfort Features
- Ride Quality
-
- Progressive-rate springs
- Hydraulic damping
- Noise-reducing bushings
- Vibration Control
-
- Isolated subframe
- Rubber mounts
- Adjustability
-
- Manual ride height
- Camber adjustment
Accessories
- Upgrades
-
- Coilover kits
- Polyurethane bushings
- Adjustable sway bars
- Tools
-
- Spring compressor
- Alignment tools
- Torque wrench
- Maintenance
-
- Replacement bushings
- Shock absorber rebuild kits
- Grease fittings
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect bushings and joints
- Check shock absorber performance
- Lubricate moving parts
- Inspect alignment
- Tighten mounting bolts
- Maintenance Notes
- Regular alignment checks recommended for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Defects in materials and workmanship
- Powertrain
- Miles: 60,000Years: 5Coverage: Suspension components
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Rust perforation
- Roadside Assistance
- Miles: UnlimitedYears: 3Coverage: Towing and emergency services
Production Details
- Manufacturer
- Toyota Motor Corporation
- Manufacturing Process
-
- Forging
- Heat treatment
- Precision machining
- Assembly
- Quality Control
- inspection: 100% component testingTolerance: ±0.005 in (0.127 mm)Durability Testing: Simulated 100,000 miles
- Sustainability Practices
-
- Recycled materials
- Low-emission coatings
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 50,000 unitsDefect Rate: 0.01%Lead Time: 4 weeks
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect bushings and joints
- Check shock absorber performance
- Lubricate moving parts
- Inspect alignment
- Tighten mounting bolts
Ensure proper torque specifications are followed.
- Replace worn bushings
- Rebuild or replace shock absorbers
- Check and adjust alignment
- Inspect sway bar links
- Lubricate all pivot points
Use manufacturer-recommended lubricants.
- Replace all bushings
- Replace shock absorbers
- Inspect and replace sway bars if necessary
- Check subframe for cracks
- Perform full alignment
Critical to inspect for structural integrity at this interval.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What suspension components are compatible with the 1991-2000 Lexus SC?
What suspension components are compatible with the 1991-2000 Lexus SC?
The 1991-2000 Lexus SC is compatible with a range of suspension components, including coil springs, shock absorbers, struts, and control arms. OEM parts are recommended for optimal performance, but aftermarket options from reputable brands like KYB, Bilstein, and Eibach are also compatible. Ensure the parts match the specific model year and trim, as variations exist between the SC 300 and SC 400.
Q2 What are the maintenance requirements for the Lexus SC suspension system?
What are the maintenance requirements for the Lexus SC suspension system?
Regular maintenance for the Lexus SC suspension includes inspecting shocks, struts, and bushings every 50,000 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 manufacturer's service schedule for detailed intervals and ensure proper torque specifications during reassembly.
Q3 How do I replace the rear shock absorbers on a 1991-2000 Lexus SC?
How do I replace the rear shock absorbers on a 1991-2000 Lexus SC?
To replace rear shock absorbers, lift the vehicle and secure it on jack stands. Remove the rear wheels and locate the shock absorber mounting bolts. Use a wrench to detach the lower and upper bolts, then carefully remove the old shock. Install the new shock, ensuring it aligns correctly, and tighten the bolts to the specified torque. Reinstall the wheels and lower the vehicle.
Q4 What should I do if my Lexus SC suspension makes noise over bumps?
What should I do if my Lexus SC suspension makes noise over bumps?
Noises over bumps often indicate worn suspension components. Inspect the shock absorbers, struts, and bushings for damage or wear. Check for loose bolts or mounts and tighten them if necessary. If the noise persists, consider replacing the affected parts. A professional inspection is recommended if the issue is not resolved after basic troubleshooting.
Q5 How can I optimize the suspension performance of my Lexus SC?
How can I optimize the suspension performance of my Lexus SC?
To optimize suspension performance, upgrade to high-performance shocks and springs for better handling and ride quality. Ensure proper alignment and tire pressure. Consider installing sway bars or strut braces for improved stability. Regularly inspect and maintain suspension components to prevent wear and ensure consistent performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1991-2000 Lexus SC Factory Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair, and specifications for the Lexus SC.
Technical Service Bulletin: Suspension Noise Fix
Coming SoonOfficial bulletin addressing common suspension noise issues and recommended repair procedures for the Lexus SC.
Lexus SC Suspension Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket suspension parts for the 1991-2000 Lexus SC.
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Technical Information
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