Pontiac Pontiac G8 2008-2009 Drivetrain Specifications
Explore the comprehensive drivetrain specifications for the 2008-2009 Pontiac G8, including engine configurations, transmission types, and differential setup. Ideal for enthusiasts, technicians, and owners seeking detailed technical insights.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 2008-2009 Pontiac G8. It is designed to assist enthusiasts, technicians, and owners in understanding the vehicle's drivetrain components, performance, and maintenance. The content is organized into sections, each focusing on a specific aspect of the drivetrain. Use the search and navigation instructions to quickly find the information you need.
How to Use
Use the search function to quickly locate specific terms or components within the document. Enter keywords related to the drivetrain, such as 'transmission' or 'axle ratio,' to find relevant sections.
Navigate through the document using the section titles and subsections. Each major section covers a distinct aspect of the drivetrain, and subsections provide detailed information. Use the table of contents or scroll through the document to explore.
Key Specifications
Engine Power (V8)
361 hp
Transmission (V8)
6-speed automatic
Drivetrain
Rear-wheel drive
Axle Ratio (V8)
3.27:1
0-60 mph
5.3 seconds
Available Specifications
Engine and Transmission
This section covers the engine and transmission details of the 2008-2009 Pontiac G8. It includes information about the available engines, transmission types, and their performance characteristics.
Engine and Transmission
This section covers the engine and transmission details of the 2008-2009 Pontiac G8. It includes information about the available engines, transmission types, and their performance characteristics.
Engine Options
- 3.6L V6 engine producing 256 horsepower
- 6.0L V8 engine producing 361 horsepower
- Dual overhead camshaft (DOHC) design
- Variable valve timing (VVT) technology
- Aluminum engine block and cylinder heads
- Electronic throttle control
Transmission Options
- 5-speed automatic transmission (V6 models)
- 6-speed automatic transmission (V8 models)
- Manual shift mode for enhanced control
- Hydra-Matic transmission technology
- Electronic stability control integration
- Optimized gear ratios for performance and efficiency
Drivetrain Configuration
This section explains the drivetrain layout and configuration of the Pontiac G8, including its rear-wheel-drive system and axle specifications.
Drivetrain Configuration
This section explains the drivetrain layout and configuration of the Pontiac G8, including its rear-wheel-drive system and axle specifications.
Drivetrain Layout
- Rear-wheel-drive (RWD) configuration
- Front-engine layout for balanced weight distribution
- Independent rear suspension system
- Limited-slip differential (optional on V8 models)
- High-strength drivetrain components
- Designed for performance and handling
Axle Specifications
- Standard axle ratio of 2.92:1 (V6 models)
- Optional axle ratio of 3.27:1 (V8 models)
- Durable axle housing materials
- Sealed bearings for reduced maintenance
- Optimized for high torque output
- Enhanced traction and stability
Performance and Efficiency
This section highlights the performance and efficiency characteristics of the Pontiac G8's drivetrain, including acceleration, fuel economy, and handling.
Performance and Efficiency
This section highlights the performance and efficiency characteristics of the Pontiac G8's drivetrain, including acceleration, fuel economy, and handling.
Acceleration and Speed
- 0-60 mph in 5.3 seconds (V8 models)
- Top speed electronically limited to 155 mph
- Quick throttle response and smooth power delivery
- Optimized for high-speed stability
- Enhanced braking system for safety
- Sport-tuned suspension for agile handling
Fuel Economy
- EPA-estimated 17 mpg city / 25 mpg highway (V6 models)
- EPA-estimated 15 mpg city / 24 mpg highway (V8 models)
- Active fuel management (AFM) technology (V8 models)
- Efficient transmission programming
- Low rolling resistance tires
- Aerodynamic design for improved efficiency
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Component Specifications
Overview
- Type
- Rear-wheel drive
- Configuration
- Longitudinal
- Platform
- GM Zeta platform
- Transmission Type
- 6-speed automatic or manual
- Differential Type
- Limited-slip
Dimensions
- Driveshaft Length
- 74.8 inches (1900 mm)
- Axle Width
- 63.0 inches (1600 mm)
- Transmission Length
- 28.3 inches (719 mm)
- Differential Ring Gear Diameter
- 8.6 inches (218 mm)
- Driveshaft Diameter
- 3.5 inches (89 mm)
- Axle Shaft Diameter
- 1.25 inches (32 mm)
- Transmission Mount Spacing
- 18.9 inches (480 mm)
Materials
- Driveshaft
- High-strength steel
- Transmission Case
- Aluminum alloy
- Differential Housing
- Cast iron
- Axle Shafts
- Chromoly steel
- Transmission Gears
- Case-hardened steel
Features
- Transmission
-
- Hydra-Matic 6L80 automatic transmission
- Tremec TR6060 6-speed manual option
- TapShift manual control (automatic)
- Grade Braking system
- Differential
-
- Limited-slip differential
- 3.27:1 final drive ratio (base)
- 3.45:1 final drive ratio (GT)
- Sealed bearing design
- Driveshaft
-
- Two-piece balanced design
- U-joint maintenance free
- Carbon fiber reinforced (GT model)
- Performance
-
- 0-60 mph in 5.3 seconds (GT manual)
- Top speed electronically limited to 155 mph
- Launch control (manual transmission)
- Cooling
-
- Transmission fluid cooler
- Differential temperature sensor
- Auxiliary oil cooler (GT model)
Safety Features
- Stability Control
-
- Traction control system
- Electronic Stability Program (ESP)
- Braking
-
- Hill Start Assist
- Electronic Brake Force Distribution
- Structural
-
- Reinforced driveshaft tunnel
- Impact-resistant differential housing
Comfort Features
- Noise Reduction
-
- Acoustic damping materials
- Precision-balanced driveline
- Shifting
-
- Smooth automatic shifting
- Short-throw manual shifter
- Vibration
-
- Hydraulic engine mounts
- Rubber-isolated driveshaft
Accessories
- Performance
-
- Short-throw shifter kit
- Performance clutch kit
- Limited-slip differential upgrade
- Maintenance
-
- Transmission service kit
- Differential fluid change kit
- Driveshaft balancing kit
- Protection
-
- Transmission skid plate
- Differential guard
- Driveshaft loop
Maintenance
- Transmission Fluid Change
- Every 50,000 miles (80,000 km)
- Differential Fluid Change
- Every 30,000 miles (48,000 km)
- Driveshaft inspection
- Every 15,000 miles (24,000 km)
- U-Joint Inspection
- Every 30,000 miles (48,000 km)
- Clutch inspection
- Every 20,000 miles (32,000 km)
- Notes
- Use only GM-approved fluids and lubricants
Warranty
- Powertrain
- Years: 5Miles: 100000Coverage: Transmission, driveshaft, differential
- Corrosion
- Years: 6Miles: 100000Coverage: Driveline components
- Parts
- Years: 1Miles: 12000Coverage: Wear items like clutch and bushings
- Emissions
- Years: 8Miles: 80000Coverage: Related driveline emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Locations
-
- Elizabeth, South Australia
- Detroit, Michigan
- Quality Control
- Driveshaft Balance: ±0.5 oz-in toleranceGear Mesh: Laser-alignedPressure Testing: Sealed components tested at 150 psi
- Sustainability
-
- Recycled materials in transmission components
- Water-based lubricants in manufacturing
- Closed-loop fluid recycling system
- Production Metrics
- Units Per Day: 450Defect Rate: 0.02%Testing Time Per Unit: 2.5 hours
Service Information for drivetrain Service
Maintenance and service requirements specific to drivetrain components
- Inspect transmission fluid level
- Check differential housing for leaks
- Inspect driveshaft U-joints
- Check transmission mounts
- Verify driveline balance
Perform checks even if no symptoms are present
- Change differential fluid
- Inspect clutch system (manual)
- Check transmission cooler lines
- Verify axle shaft seals
- Inspect driveline bushings
Use only GM-approved fluids for service
- Change transmission fluid and filter
- Inspect and balance driveshaft
- Check differential gear wear
- Replace transmission mount if worn
- Flush transmission cooler system
Professional service recommended for major intervals
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What engines are compatible with the 2008-2009 Pontiac G8 drivetrain?
What engines are compatible with the 2008-2009 Pontiac G8 drivetrain?
The 2008-2009 Pontiac G8 drivetrain is compatible with two engine options: the 3.6L V6 (LY7) and the 6.0L V8 (L76). The V6 produces 256 horsepower and 248 lb-ft of torque, while the V8 delivers 361 horsepower and 385 lb-ft of torque. Both engines are paired with a 6-speed automatic transmission (6L80E) for smooth power delivery. The drivetrain is designed for rear-wheel drive (RWD) configurations, ensuring optimal performance and handling.
Q2 What maintenance is required for the Pontiac G8 drivetrain?
What maintenance is required for the Pontiac G8 drivetrain?
Regular maintenance for the Pontiac G8 drivetrain includes checking and replacing transmission fluid every 50,000 miles, inspecting the driveshaft and differential for wear, and ensuring proper alignment of the rear axle. Lubricate the universal joints and inspect the CV joints annually. Additionally, monitor the transmission for smooth shifting and address any unusual noises or vibrations promptly to prevent long-term damage.
Q3 How do I replace the driveshaft on a 2008-2009 Pontiac G8?
How do I replace the driveshaft on a 2008-2009 Pontiac G8?
To replace the driveshaft on a Pontiac G8, first, safely lift the vehicle and secure it on jack stands. Remove the rear wheels and disconnect the driveshaft from the differential by unbolting the flange. Next, unbolt the driveshaft from the transmission output shaft. Carefully lower the driveshaft and install the new one by reversing the steps. Ensure all bolts are torqued to the manufacturer’s specifications and test drive to confirm proper installation.
Q4 What are common drivetrain issues in the Pontiac G8?
What are common drivetrain issues in the Pontiac G8?
Common drivetrain issues in the Pontiac G8 include transmission slipping, which may indicate low fluid levels or worn clutch packs, and vibrations at high speeds, often caused by a misaligned or unbalanced driveshaft. Differential whining noises may suggest worn bearings or insufficient lubrication. For troubleshooting, inspect fluid levels, check for leaks, and perform a visual inspection of all drivetrain components for signs of wear or damage.
Q5 How can I optimize the performance of my Pontiac G8 drivetrain?
How can I optimize the performance of my Pontiac G8 drivetrain?
To optimize the Pontiac G8 drivetrain, consider upgrading to a high-performance torque converter and installing a limited-slip differential for better traction. Use synthetic transmission fluid to reduce friction and heat. Regularly inspect and maintain drivetrain components to ensure they are in good condition. Additionally, a performance tune can enhance throttle response and shift points, improving overall drivetrain efficiency and 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.
Pontiac G8 Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 2008-2009 Pontiac G8 drivetrain and other components.
Transmission Technical Bulletin for 6L80E
Coming SoonTechnical service bulletin addressing common issues and updates for the 6L80E transmission used in the Pontiac G8.
Pontiac G8 Drivetrain Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket drivetrain parts available for the 2008-2009 Pontiac G8, including replacement driveshafts and differentials.
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Technical Information
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