Subaru Subaru WRX 1992-2001 Drivetrain Specifications
Explore the detailed drivetrain specifications for the 1992-2001 Subaru WRX, including transmission types, differential configurations, and AWD system. Essential for enthusiasts, mechanics, and buyers.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 1992-2001 Subaru WRX. It is designed to assist enthusiasts, mechanics, and researchers in understanding the key components and performance characteristics of the vehicle's drivetrain. Use the search and navigation instructions to quickly locate specific details or browse through sections for a comprehensive overview.
How to Use
Use the search functionality to find specific terms or components within the document. Enter keywords such as 'transmission type' or 'differential ratio' to quickly locate relevant information.
Navigate through the document by scrolling through sections or using the table of contents. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Transmission Type
5-speed manual
Final Drive Ratio
4.111
Center Differential
Viscous coupling
Torque Split
50:50 front/rear
Axle Type
CV joints
Available Specifications
Transmission
This section covers the transmission system of the 1992-2001 Subaru WRX, including its type, gear ratios, and performance characteristics. Learn about the manual and automatic options available during this period and their impact on driving dynamics.
Transmission
This section covers the transmission system of the 1992-2001 Subaru WRX, including its type, gear ratios, and performance characteristics. Learn about the manual and automatic options available during this period and their impact on driving dynamics.
Transmission Type
- 5-speed manual transmission standard
- Optional 4-speed automatic transmission
- All-wheel drive (AWD) system integrated
- Dual-range gearbox available in some markets
- Synchromesh on all forward gears
- Hydraulic clutch system
Gear Ratios
- 1st gear: 3.454
- 2nd gear: 1.947
- 3rd gear: 1.366
- 4th gear: 0.972
- 5th gear: 0.738
- Reverse gear: 3.333
Differential
Explore the differential system of the Subaru WRX, including its type, configuration, and role in the AWD system. This section provides insights into how the differential enhances traction and handling.
Differential
Explore the differential system of the Subaru WRX, including its type, configuration, and role in the AWD system. This section provides insights into how the differential enhances traction and handling.
Differential Type
- Viscous coupling center differential
- Open front and rear differentials
- Limited-slip differential (LSD) optional in some models
- Torque split: 50:50 front to rear
- Differential lock capability in dual-range models
Differential Ratios
- Standard final drive ratio: 4.111
- Optional final drive ratio: 3.900 in some trims
- Front differential ratio matches rear
- Differential oil capacity: 0.8 liters
Driveshaft and Axles
This section details the driveshaft and axle components of the Subaru WRX, including their design, materials, and maintenance requirements. Understand how these parts contribute to the vehicle's performance and durability.
Driveshaft and Axles
This section details the driveshaft and axle components of the Subaru WRX, including their design, materials, and maintenance requirements. Understand how these parts contribute to the vehicle's performance and durability.
Driveshaft
- Two-piece propeller shaft design
- Rubber couplings for vibration damping
- Balanced for high-speed operation
- Maintenance-free universal joints
Axles
- Constant velocity (CV) joints at all four wheels
- Sealed for life with grease fittings
- Axle shaft diameter: 26 mm
- Replacement interval: 100,000 miles or as needed
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Component Specifications
Overview
- Type
- All-Wheel Drive (AWD)
- Configuration
- Symmetrical AWD
- Platform
- Subaru Impreza GC/GM/GF
- Material
- High-strength steel and aluminum
- Location
- Front-engine, longitudinal layout
Dimensions
- Driveshaft Length
- 56.3 inches (1430 mm)
- Rear Differential Width
- 22.8 inches (580 mm)
- Front Axle Diameter
- 1.2 inches (30.5 mm)
- Rear Axle Diameter
- 1.1 inches (28 mm)
- Transfer Case Width
- 14.5 inches (368 mm)
- Propeller Shaft Diameter
- 2.4 inches (61 mm)
- Center Differential Height
- 8.7 inches (221 mm)
Materials
- Driveshaft
- High-strength steel
- Differential Housing
- Aluminum alloy
- Axles
- Chromoly steel
- Transfer Case
- Cast iron with aluminum casing
- CV Joints
- Forged steel with PTFE lining
Features
- Drivetrain Control
-
- Mechanical limited-slip center differential
- 50:50 torque split (default)
- Variable torque distribution under slip
- Manual locking differential (STI models)
- Transmission integration
-
- 5-speed manual transmission
- 4-speed automatic transmission (optional)
- Short-throw shifter (STI models)
- Dual-range gearbox (optional)
- Suspension interaction
-
- Independent front and rear suspension
- Compatible with MacPherson struts
- Optimized for rally-style handling
- Low center of gravity design
- Performance Enhancements
-
- High-capacity cooling for differentials
- Reinforced propeller shaft
- Upgraded CV joints for high torque
- Rally-inspired durability
Safety Features
- Structural integrity
-
- Reinforced drivetrain mounts
- Crash-resistant differential housing
- Traction Control
-
- Mechanical AWD system
- No electronic intervention (1992-1996)
- Optional VDC (1999-2001)
- Overload Protection
-
- Shear pins in drivetrain
- Thermal protection for differentials
Comfort Features
- Noise Reduction
-
- Damped propeller shaft
- Isolated differential mounts
- Vibration Control
-
- Balanced driveshaft
- Rubber-mounted transfer case
- Drivability
-
- Smooth torque delivery
- Predictable handling characteristics
Accessories
- Performance Upgrades
-
- STI short-throw shifter
- Lightweight flywheel
- Upgraded clutch kit
- Maintenance Tools
-
- Differential fluid pump
- CV joint boot kit
- Driveshaft balancer
- Protection Components
-
- Skid plate for differential
- Driveshaft loop
- Differential cooler
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Differential fluid change
- CV joint inspection
- Driveshaft balancing
- Transfer case lubrication
- Propeller shaft U-joint check
- Maintenance Notes
- Use only Subaru Extra LSD oil for rear differential
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Drivetrain components
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: Differentials and transfer case
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Drivetrain housing
- Extended Warranty
- Miles: 100,000Years: 7Coverage: Optional drivetrain coverage
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Precision forging for gears
- CNC machining for housings
- Robotic assembly for drivetrain
- Quality Control
- Testing: Dyno testing for durability, Thermal stress testing, Vibration analysisStandards: ISO 9001 certified, JIS D 0101 compliance
- Sustainability Practices
-
- Recycled aluminum in housings
- Eco-friendly lubricants
- Energy-efficient manufacturing
- Production Metrics
- Units Per Day: 120Defect Rate: 0.02%Recycling Rate: 95%
Service Information for drivetrain Service
Maintenance and service requirements specific to this component
- Inspect CV joints and boots
- Check differential fluid levels
- Lubricate propeller shaft U-joints
- Inspect driveshaft balance
- Check transfer case for leaks
Use only Subaru-approved fluids
- Replace differential fluids
- Inspect and repack CV joints
- Check drivetrain mounts
- Test AWD system operation
- Inspect propeller shaft for wear
Special tools required for differential service
- Replace CV joints if necessary
- Rebuild or replace differential
- Overhaul transfer case
- Replace propeller shaft U-joints
- Perform full drivetrain alignment
Major service requires specialized equipment
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the drivetrain specifications for the 1992-2001 Subaru WRX?
What are the drivetrain specifications for the 1992-2001 Subaru WRX?
The 1992-2001 Subaru WRX features a symmetrical all-wheel-drive (AWD) system with a 5-speed manual transmission. The front and rear differentials are open, and the center differential is a viscous coupling type. The engine is a 2.0L turbocharged EJ20, producing between 220-280 horsepower depending on the model year and market. The drivetrain is compatible with most aftermarket upgrades, but modifications should be verified for fitment and performance impact.
Q2 What maintenance is required for the Subaru WRX drivetrain?
What maintenance is required for the Subaru WRX drivetrain?
Regular maintenance for the Subaru WRX drivetrain includes changing the transmission and differential fluids every 30,000-60,000 miles, inspecting the driveshaft and CV joints for wear, and ensuring the AWD system is functioning properly. The clutch should be checked every 50,000 miles, and the timing belt and water pump should be replaced every 60,000-100,000 miles to prevent drivetrain damage.
Q3 How do I replace the clutch on a 1992-2001 Subaru WRX?
How do I replace the clutch on a 1992-2001 Subaru WRX?
To replace the clutch, first, disconnect the battery and remove the transmission. Support the engine with a jack, then unbolt the transmission bellhousing and slide it out. Remove the pressure plate and clutch disc, and inspect the flywheel for wear. Install the new clutch components, ensuring proper alignment with a clutch alignment tool. Reassemble the transmission, reconnect all components, and test the clutch operation before driving.
Q4 What are common drivetrain issues in the 1992-2001 Subaru WRX?
What are common drivetrain issues in the 1992-2001 Subaru WRX?
Common drivetrain issues include worn CV joints, which cause clicking noises during turns, and failing center differentials, which may result in binding or uneven power distribution. Transmission synchros can wear out, leading to difficulty shifting. Diagnose CV joint issues by inspecting the boots for tears and checking for play. Differential problems may require fluid analysis or replacement. Transmission issues often necessitate a rebuild or replacement.
Q5 How can I optimize the performance of my Subaru WRX drivetrain?
How can I optimize the performance of my Subaru WRX drivetrain?
To optimize drivetrain performance, upgrade to a lightweight flywheel and high-performance clutch for quicker throttle response. Install a limited-slip differential for improved traction. Use high-quality synthetic fluids for the transmission and differentials. Ensure proper alignment and balance of the drivetrain components. Regularly inspect and maintain the AWD system to ensure optimal power distribution and handling.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Subaru WRX 1992-2001 Service Manual
Coming SoonComprehensive guide covering drivetrain maintenance, repair, and troubleshooting for the 1992-2001 Subaru WRX.
Subaru Technical Service Bulletin: Drivetrain Updates
Coming SoonDetails updates and fixes for common drivetrain issues in the 1992-2001 Subaru WRX, including differential and transmission improvements.
Subaru WRX Drivetrain Parts Catalog
Coming SoonCatalog of OEM and aftermarket drivetrain parts for the 1992-2001 Subaru WRX, including compatibility and installation notes.
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Technical Information
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