Lexus LX 1998-2007 Drivetrain Specifications
Explore the comprehensive drivetrain specifications for the 1998-2007 Lexus LX, including transmission, transfer case, differentials, and drive modes. Ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 1998-2007 Lexus LX. It is designed to assist enthusiasts, mechanics, and owners in understanding the vehicle's drivetrain components, performance, and maintenance. Use the search and navigation instructions to quickly find relevant information. The document is divided into sections covering key aspects of the drivetrain, with subsections offering in-depth details.
How to Use
Use the search bar to enter keywords related to the drivetrain, such as 'transmission' or 'differential'. Results will highlight relevant sections and subsections for quick access.
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
Transmission Type
5-speed automatic
Transfer Case
Full-time 4WD
Differential Type
Open/LSD
Gear Ratios
3.520 (1st)
Center Diff Lock
Yes
Available Specifications
Transmission System
This section covers the transmission system of the 1998-2007 Lexus LX, including its type, gear ratios, and performance characteristics. It also provides details on maintenance and common issues.
Transmission System
This section covers the transmission system of the 1998-2007 Lexus LX, including its type, gear ratios, and performance characteristics. It also provides details on maintenance and common issues.
Transmission Type
- 5-speed automatic transmission
- Electronically controlled with intelligence (ECT-i)
- Adaptive shift control for smooth gear changes
- Manual shift mode for driver control
- Designed for both on-road and off-road performance
Gear Ratios
- 1st gear: 3.520
- 2nd gear: 2.042
- 3rd gear: 1.400
- 4th gear: 1.000
- 5th gear: 0.716
- Reverse gear: 3.224
Transfer Case
This section provides information about the transfer case, including its type, operation, and role in distributing power to the front and rear axles.
Transfer Case
This section provides information about the transfer case, including its type, operation, and role in distributing power to the front and rear axles.
Transfer Case Type
- Full-time 4WD system
- Two-speed transfer case
- High and low range settings
- Center differential lock for off-road traction
- Electronic control for seamless operation
Operation
- Automatic torque distribution between axles
- Manual selection of high or low range
- Locking center differential for maximum traction
- Designed for durability in harsh conditions
- Integrated with vehicle stability systems
Differential System
This section details the differential system, including the front, rear, and center differentials, their functions, and maintenance requirements.
Differential System
This section details the differential system, including the front, rear, and center differentials, their functions, and maintenance requirements.
Front and Rear Differentials
- Open differentials standard
- Optional limited-slip differential (LSD)
- Designed for balanced torque distribution
- Sealed for off-road durability
- Regular fluid changes recommended
Center Differential
- Lockable center differential
- Provides equal torque distribution to front and rear axles
- Essential for off-road performance
- Integrated with 4WD system
- Requires periodic inspection
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Component Specifications
Overview
- Type
- Full-time 4WD
- Configuration
- Front-engine, four-wheel drive
- Platform
- Toyota Land Cruiser J100 series
- Material
- High-strength steel and aluminum
- Location
- Underbody, center-mounted transfer case
Dimensions
- Transfer Case Length
- 12.6 inches (320 mm)
- Transfer Case Width
- 10.2 inches (260 mm)
- Transfer Case Height
- 8.7 inches (220 mm)
- Driveshaft Diameter
- 3.15 inches (80 mm)
- Front Axle Length
- 56.3 inches (1430 mm)
- Rear Axle Length
- 56.3 inches (1430 mm)
- Differential Gear Ratio
- 4.30:1
Materials
- Transfer Case Housing
- Aluminum alloy
- Driveshaft
- High-strength steel
- Differential Carrier
- Ductile iron
- Axle Housing
- Forged steel
- Gear Set
- Case-hardened steel
Features
- Transfer Case
-
- Two-speed transfer case
- Center differential lock
- Electronic shift-on-the-fly
- Low-range gearing
- Differentials
-
- Open front differential
- Limited-slip rear differential
- Torsen center differential
- Sealed for water fording
- Driveshaft
-
- Balanced for high-speed operation
- Double-cardan joint design
- Corrosion-resistant coating
- Axles
-
- Semi-floating rear axle
- Full-floating front axle
- Heavy-duty axle shafts
- Suspension integration
-
- Independent front suspension
- Solid rear axle with coil springs
- Hydraulic bump stops
Safety Features
- Stability Control
-
- Vehicle Stability Control (VSC)
- Traction Control System (TRC)
- Braking
-
- 4-wheel ABS
- Electronic Brakeforce Distribution (EBD)
- Structural
-
- Reinforced underbody protection
- Skid plates for critical components
Comfort Features
- Noise Reduction
-
- Insulated transfer case housing
- Vibration-dampening driveshaft
- Smoothness
-
- Precision-balanced components
- Hydraulic engine mounts
- Climate Adaptation
-
- Cold-weather lubrication
- Heat-resistant seals
- Ride Quality
-
- Adaptive suspension tuning
- Low NVH (Noise, Vibration, Harshness) levels
Accessories
- Off Road
-
- Differential breather extensions
- Heavy-duty skid plates
- Rock sliders
- Performance
-
- Upgraded differential gears
- High-angle driveshaft
- Reinforced axle shafts
- Maintenance
-
- Differential service kit
- Transfer case fluid pump
- Driveshaft balancing weights
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Transfer case fluid replacement
- Differential oil change
- Driveshaft inspection
- U-joint lubrication
- Axle seal inspection
- Maintenance Notes
- Use only manufacturer-recommended fluids for optimal performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 70,000Years: 6Coverage: Transfer case, differentials, driveshaft
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Rust-through protection
- Roadside Assistance
- Miles: UnlimitedYears: 4Coverage: 24/7 emergency services
Production Details
- Manufacturer
- Aisin Seiki Co., Ltd.
- Manufacturing Process
-
- Precision CNC machining
- Heat treatment for gears
- Robotic assembly
- Quality Control
- Testing: Durability testing, Vibration analysis, Leak testingStandards: ISO 9001 certified, JIS D 0201 compliant
- Sustainability Practices
-
- Recycled aluminum usage
- Low-emission manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Day: 120Defect Rate: 0.02%Energy Efficiency: 85%
Service Information for drivetrain Service
Maintenance and service requirements specific to the drivetrain
- Inspect transfer case for leaks
- Check differential oil level
- Lubricate U-joints
- Inspect driveshaft balance
- Check axle seals
Use only manufacturer-recommended fluids.
- Replace transfer case fluid
- Change differential oil
- Inspect driveshaft for wear
- Check differential breathers
- Test 4WD system operation
Special tools required for fluid replacement.
- Replace driveshaft U-joints
- Rebuild transfer case if necessary
- Inspect and replace axle seals
- Check differential backlash
- Perform full 4WD system diagnostic
Major service may require dealership tools.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the drivetrain specifications for the 1998-2007 Lexus LX?
What are the drivetrain specifications for the 1998-2007 Lexus LX?
The 1998-2007 Lexus LX features a full-time 4WD system with a Torsen limited-slip center differential. It is powered by a 4.7L V8 engine producing 235-275 hp, paired with a 5-speed automatic transmission. The drivetrain includes a 2-speed transfer case for high and low ranges, ensuring excellent off-road capability. It is compatible with 18-inch wheels and has a towing capacity of up to 6,500 lbs.
Q2 What maintenance is required for the Lexus LX drivetrain?
What maintenance is required for the Lexus LX drivetrain?
Regular maintenance includes checking and replacing the transfer case and differential fluids every 30,000-60,000 miles. Inspect the driveshaft and CV joints for wear every 15,000 miles. Ensure the 4WD system is engaged periodically to maintain functionality. Replace the timing belt and water pump every 90,000 miles to prevent drivetrain damage.
Q3 How do I replace the transfer case in a 1998-2007 Lexus LX?
How do I replace the transfer case in a 1998-2007 Lexus LX?
To replace the transfer case, lift the vehicle and secure it on jack stands. Disconnect the driveshafts, wiring harness, and shift linkage. Remove the crossmember and support the transmission. Unbolt the transfer case and carefully lower it. Install the new transfer case, ensuring proper alignment, and reconnect all components. Refill with the recommended fluid and test the system.
Q4 What should I do if my Lexus LX drivetrain makes unusual noises?
What should I do if my Lexus LX drivetrain makes unusual noises?
Unusual noises may indicate worn CV joints, a failing driveshaft, or low fluid levels. Inspect the CV boots for tears and check the driveshaft for play. Ensure the transfer case and differential fluids are at the correct levels. If the issue persists, consult a professional for a thorough diagnostic.
Q5 How can I optimize the performance of my Lexus LX drivetrain?
How can I optimize the performance of my Lexus LX drivetrain?
To optimize performance, use high-quality synthetic fluids for the transfer case and differentials. Regularly inspect and maintain the 4WD system components. Upgrade to performance tires for better traction. Consider installing a cold air intake and performance exhaust to enhance engine efficiency, which indirectly benefits the drivetrain.
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 LX 470 Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and troubleshooting for the 1998-2007 Lexus LX 470 drivetrain and other systems.
Technical Service Bulletin: Drivetrain Noise
Coming SoonAddresses common drivetrain noise issues and provides recommended solutions for the 1998-2007 Lexus LX models.
Lexus LX Drivetrain Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket drivetrain components for the 1998-2007 Lexus LX, including part numbers and compatibility information.
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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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