Lexus SC 2002-2010 Drivetrain Specifications
Explore the detailed drivetrain specifications for the 2002-2010 Lexus SC, including transmission types, gear ratios, and torque specs. Ideal for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 2002-2010 Lexus SC. It is designed to help users understand the key components, performance metrics, and maintenance considerations of the vehicle's drivetrain. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about the engine, transmission, and other drivetrain elements.
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Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Engine Displacement
3.0L (SC 300) / 4.3L (SC 430)
Horsepower
225 hp (SC 300) / 288 hp (SC 430)
Torque
220 lb-ft (SC 300) / 317 lb-ft (SC 430)
Transmission
5-speed auto (SC 300) / 6-speed auto (SC 430)
Drivetrain
Rear-wheel drive (RWD)
Available Specifications
Engine Specifications
This section covers the engine configurations available for the 2002-2010 Lexus SC, including displacement, power output, and fuel delivery systems. It also highlights key features like variable valve timing and cylinder arrangement.
Engine Specifications
This section covers the engine configurations available for the 2002-2010 Lexus SC, including displacement, power output, and fuel delivery systems. It also highlights key features like variable valve timing and cylinder arrangement.
Engine Types
- 3.0L V6 engine (1MZ-FE) for the SC 300
- 4.3L V8 engine (3UZ-FE) for the SC 430
- Dual overhead camshaft (DOHC) design
- Variable Valve Timing with intelligence (VVT-i)
- Aluminum alloy cylinder heads and blocks
- Sequential multi-port fuel injection
Performance Metrics
- 225 horsepower @ 5,800 rpm (SC 300)
- 288 horsepower @ 5,600 rpm (SC 430)
- 220 lb-ft torque @ 4,400 rpm (SC 300)
- 317 lb-ft torque @ 3,400 rpm (SC 430)
- Redline at 6,200 rpm (SC 300)
- Redline at 6,400 rpm (SC 430)
Transmission Details
This section provides information about the transmission systems used in the Lexus SC, including automatic and manual options, gear ratios, and drivetrain configurations.
Transmission Details
This section provides information about the transmission systems used in the Lexus SC, including automatic and manual options, gear ratios, and drivetrain configurations.
Transmission Types
- 5-speed automatic transmission (SC 300)
- 6-speed automatic transmission (SC 430)
- Rear-wheel drive (RWD) configuration
- Electronically controlled transmission (ECT)
- Manual mode with paddle shifters (SC 430)
- Lock-up torque converter for improved efficiency
Gear Ratios
- 1st gear: 3.538 (SC 300)
- 2nd gear: 2.060 (SC 300)
- 3rd gear: 1.404 (SC 300)
- 4th gear: 1.000 (SC 300)
- 5th gear: 0.713 (SC 300)
- Reverse gear: 3.168 (SC 300)
Drivetrain Components
This section explores the key components of the Lexus SC drivetrain, including the differential, driveshaft, and suspension systems that contribute to its performance and handling.
Drivetrain Components
This section explores the key components of the Lexus SC drivetrain, including the differential, driveshaft, and suspension systems that contribute to its performance and handling.
Differential and Driveshaft
- Limited-slip differential (LSD) for improved traction
- Aluminum driveshaft for reduced weight
- 3.266 final drive ratio (SC 300)
- 3.083 final drive ratio (SC 430)
- Sealed bearings for durability
- High-strength steel components
Suspension and Handling
- Double-wishbone front suspension
- Multi-link rear suspension
- Adaptive Variable Suspension (AVS) on SC 430
- Stabilizer bars for reduced body roll
- Hydraulic power steering system
- 18-inch alloy wheels (SC 430)
Search Specifications
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Component Specifications
Overview
- Type
- Rear-wheel drive (RWD) / All-wheel drive (AWD) (optional for certain models)
- Configuration
- Longitudinal engine placement
- Platform
- Toyota N platform
- Material
- High-strength steel and aluminum components
- Location
- Underbody, center-rear for differential
Dimensions
- Driveshaft Length
- 72.5 inches (1841.5 mm)
- Differential Width
- 22.8 inches (579.1 mm)
- Axle Diameter
- 1.5 inches (38.1 mm)
- Transmission Length
- 28.3 inches (718.8 mm)
- Transfer Case Width
- 14.2 inches (360.7 mm)
- Propeller Shaft Diameter
- 3.1 inches (78.7 mm)
- Differential Gear Ratio
- 3.27:1 (standard), 3.73:1 (optional)
Materials
- Driveshaft
- High-strength steel with aluminum center support
- Differential Housing
- Cast aluminum alloy
- Axles
- Forged steel with carbon coating
- Transmission Case
- Aluminum alloy with magnesium components
- Transfer Case
- Aluminum alloy with steel internals
Features
- Transmission
-
- 5-speed automatic with manual shift mode
- Adaptive shift control
- Electronic throttle control
- Torque converter lock-up clutch
- Differential
-
- Limited-slip differential (optional)
- Sealed gear housing
- High-capacity cooling fins
- Electronic traction control integration
- Driveshaft
-
- Two-piece design with center support bearing
- Dynamic balancing
- Corrosion-resistant coating
- High-torque capacity
- Axles
-
- CV joint design
- Sealed boot system
- High-angle capability
- Integrated ABS sensor rings
- Transfer Case
-
- Full-time AWD capability (optional models)
- Electronic torque distribution
- Sealed lubrication system
- Compact lightweight design
Safety Features
- Electronic Systems
-
- Vehicle Stability Control (VSC)
- Traction Control System (TRAC)
- Anti-lock Braking System (ABS) integration
- Structural
-
- Reinforced driveshaft tunnel
- Impact-resistant differential housing
- Shear-pin driveshaft safety feature
Comfort Features
- Noise Reduction
-
- Dual-mass flywheel
- Insulated transmission tunnel
- Balanced driveshaft design
- Vibration Control
-
- Hydraulic engine mounts
- Rubber-isolated differential mounts
- Dynamic dampers on driveshaft
Accessories
- Performance
-
- Limited-slip differential upgrade
- High-capacity transmission cooler
- Reinforced driveshaft
- Maintenance
-
- Differential service kit
- Transmission fluid exchange kit
- Driveshaft balancing kit
- Protection
-
- Differential skid plate
- Transmission pan guard
- Driveshaft loop
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Transmission fluid and filter replacement
- Differential oil change
- Driveshaft inspection and lubrication
- Transfer case fluid replacement
- Axle boot inspection
- U-joint lubrication
- Maintenance Notes
- Use only manufacturer-recommended fluids. Inspect for leaks at every service interval.
Warranty
- Basic
- Miles: 50000Years: 4Coverage: Drivetrain components excluding wear items
- Powertrain
- Miles: 70000Years: 6Coverage: Transmission, differential, and driveshaft
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Rust-through protection for drivetrain components
- Emissions
- Miles: 80000Years: 8Coverage: Catalytic converter and related drivetrain emissions components
Production Details
- Manufacturer
- Aisin Seiki Co., Ltd.
- Manufacturing Process
-
- Precision CNC machining
- Robotic assembly
- Laser alignment
- Dynamic balancing
- Quality Control
- Testing: Durability testing, Noise and vibration analysis, Thermal cyclinginspection: X-ray inspection of castings, Magnetic particle inspection, Dimensional verification
- Sustainability Practices
-
- Recycled aluminum usage
- Closed-loop lubrication systems
- Low-emission manufacturing
- Production Metrics
- Units Per Day: 1200Defect Rate: 0.02%Energy Usage: 15 kWh per unit
Service Information for drivetrain Service
Maintenance and service requirements specific to this component
- Inspect driveshaft and U-joints
- Check transmission fluid level and condition
- Inspect differential for leaks
- Lubricate propeller shaft splines
- Check transfer case fluid level
Use only manufacturer-approved fluids. Inspect for unusual noises or vibrations.
- Replace transmission fluid and filter
- Change differential oil
- Inspect axle boots for damage
- Check transfer case operation
- Verify drivetrain mounts condition
Special tools required for fluid changes. Follow torque specifications precisely.
- Complete drivetrain inspection
- Replace transfer case fluid
- Rebuild or replace U-joints if necessary
- Check and adjust differential backlash
- Perform drivetrain alignment
Major service interval. May require specialized equipment and expertise.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the drivetrain specifications for the 2002-2010 Lexus SC?
What are the drivetrain specifications for the 2002-2010 Lexus SC?
The 2002-2010 Lexus SC models feature a rear-wheel-drive (RWD) system. The SC 430 is equipped with a 4.3L V8 engine paired with a 6-speed automatic transmission, delivering 288 horsepower and 317 lb-ft of torque. The SC 300/400 models from earlier years feature a 3.0L inline-6 or 4.0L V8 engine, respectively. Compatibility is limited to OEM or aftermarket parts designed specifically for these models.
Q2 What maintenance is required for the Lexus SC drivetrain?
What maintenance is required for the Lexus SC drivetrain?
Regular maintenance for the Lexus SC drivetrain includes checking and replacing transmission fluid every 60,000-100,000 miles, inspecting the driveshaft and differential for wear, and ensuring proper lubrication of U-joints. Additionally, the rear differential fluid should be replaced every 30,000-50,000 miles. Regular inspections of the drivetrain components for leaks or damage are also recommended.
Q3 How do I replace the driveshaft on a 2002-2010 Lexus SC?
How do I replace the driveshaft on a 2002-2010 Lexus SC?
To replace the driveshaft, first, secure the vehicle on a lift or jack stands. Remove the exhaust system and heat shields for access. Unbolt the driveshaft from the differential and transmission. Mark the driveshaft and flanges for proper alignment during reinstallation. Install the new driveshaft, ensuring all bolts are torqued to factory specifications. Reassemble the exhaust system and test for proper operation.
Q4 What should I do if my Lexus SC drivetrain is making noise?
What should I do if my Lexus SC drivetrain is making noise?
If your drivetrain is making noise, start by inspecting the driveshaft, U-joints, and differential for wear or damage. Check for loose or missing bolts and ensure proper lubrication. If the noise persists, inspect the transmission and differential mounts. Common issues include worn U-joints or insufficient lubrication. Replace any damaged components and retest.
Q5 How can I optimize the performance of my Lexus SC drivetrain?
How can I optimize the performance of my Lexus SC drivetrain?
To optimize drivetrain performance, use high-quality synthetic fluids for the transmission and differential. Upgrade to performance driveshafts or lightweight components for reduced rotational mass. Ensure proper alignment and balance of drivetrain components. Regularly inspect and maintain all drivetrain parts to prevent wear and improve longevity.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Lexus SC 2002-2010 Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for the Lexus SC drivetrain and other systems.
Technical Service Bulletin: Drivetrain Noise
Coming SoonOfficial bulletin addressing common drivetrain noise issues and recommended solutions for 2002-2010 Lexus SC models.
Lexus SC Drivetrain Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket drivetrain components for the 2002-2010 Lexus SC.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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