GMC Acadia 2017-2019 6T70 Transmission Specifications
This document provides a detailed overview of the 6T70 transmission specifications for the 2017-2019 GMC Acadia. It includes essential details such as gear ratios, torque capacity, fluid requirements, and maintenance intervals. These specifications are crucial for understanding the transmission's performance, ensuring proper maintenance, and diagnosing potential issues. The information is valuable for vehicle owners, mechanics, and enthusiasts seeking to optimize the transmission's lifespan and performance. Whether you're performing routine maintenance, troubleshooting, or planning upgrades, this guide serves as a comprehensive resource for all technical aspects of the 6T70 transmission in the specified GMC Acadia models.
Overview Specifications
This document provides detailed specifications and technical information about the 6T70 transmission used in the 2017-2019 GMC Acadia. It is designed to assist mechanics, technicians, and enthusiasts in understanding the transmission's features, performance, and maintenance requirements. The content is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use this document to gain insights into the 6T70 transmission's design, operation, and compatibility.
How to Use
To search for specific terms or topics, use the search bar at the top of the document. Enter keywords related to the 6T70 transmission, such as 'gear ratios' or 'fluid capacity,' to quickly locate relevant information.
Navigate through the document using the table of contents or by scrolling. Each section is clearly labeled, and subsections are organized for easy access. Use the quick reference guide at the end for a summary of key specifications.
Key Specifications
Transmission Type
6-speed automatic
Torque Capacity
315 lb-ft
Fluid Capacity
11.2 quarts
Gear Ratios
4.48:1 to 0.74:1
Compatible Engine
3.6L V6
Available Specifications
Transmission Design
This section covers the design and engineering of the 6T70 transmission, including its structure, materials, and innovative features. Learn about the transmission's construction and how it contributes to the overall performance of the GMC Acadia.
Transmission Design
This section covers the design and engineering of the 6T70 transmission, including its structure, materials, and innovative features. Learn about the transmission's construction and how it contributes to the overall performance of the GMC Acadia.
Mechanical Structure
- 6-speed automatic transmission
- Front-wheel drive and all-wheel drive compatibility
- Aluminum alloy casing for reduced weight
- Hydraulic control system for smooth shifting
- Integrated torque converter
- Sealed unit for minimal maintenance
Innovative Features
- Adaptive shift technology for optimized performance
- Electronic precision shift for enhanced control
- Thermal management system for improved durability
- Compact design for efficient packaging
- Low friction components for better fuel efficiency
- Advanced diagnostics for easy troubleshooting
Performance Specifications
This section provides detailed performance metrics for the 6T70 transmission, including gear ratios, torque capacity, and efficiency. Understand how the transmission enhances the driving experience of the GMC Acadia.
Performance Specifications
This section provides detailed performance metrics for the 6T70 transmission, including gear ratios, torque capacity, and efficiency. Understand how the transmission enhances the driving experience of the GMC Acadia.
Gear Ratios
- First gear: 4.48:1
- Second gear: 2.87:1
- Third gear: 1.84:1
- Fourth gear: 1.41:1
- Fifth gear: 1.00:1
- Sixth gear: 0.74:1
Torque and Power Handling
- Maximum torque capacity: 315 lb-ft
- Compatible with 3.6L V6 engine
- Optimized for up to 310 horsepower
- Smooth power delivery across all gears
- Enhanced load-carrying capability
- Durable clutch packs for high torque applications
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the 6T70 transmission. Learn about fluid specifications, inspection procedures, and common troubleshooting tips.
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the 6T70 transmission. Learn about fluid specifications, inspection procedures, and common troubleshooting tips.
Fluid Requirements
- Recommended fluid: Dexron VI ATF
- Fluid capacity: 11.2 quarts (with filter)
- Regular fluid changes every 50,000 miles
- Use of synthetic fluid for extended life
- Proper fluid level checks during maintenance
- Avoid mixing different fluid types
Service and Inspection
- Inspect for leaks during routine maintenance
- Check transmission mounts for wear
- Monitor shift quality and responsiveness
- Perform diagnostic scans for error codes
- Replace filter during fluid changes
- Ensure proper alignment of transmission components
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 6-speed
- Platform
- Front-wheel drive / All-wheel drive
- Material
- Aluminum and steel
- Location
- Integrated with engine
Dimensions
- Length
- 22.8 in (579 mm)
- Width
- 15.7 in (399 mm)
- Height
- 14.2 in (361 mm)
- Weight
- 187 lbs (85 kg)
- input Shaft Diameter
- 1.25 in (31.75 mm)
- Output Shaft Diameter
- 1.5 in (38.1 mm)
- Fluid Capacity
- 9.5 quarts (9 liters)
Materials
- Housing
- Aluminum alloy
- Gears
- Case-hardened steel
- Clutches
- Composite friction materials
- Shafts
- High-strength steel
- Seals
- Synthetic rubber
Features
- Performance
-
- Adaptive shift control
- Grade braking system
- Tow/Haul mode
- Sport mode
- Efficiency
-
- Optimized gear ratios
- Reduced internal friction
- Eco mode for fuel savings
- Technology
-
- Electronic precision shift
- Integrated control module
- Real-time diagnostics
- Durability
-
- Heavy-duty cooling system
- Reinforced components
- Extended fluid life
- integration
-
- Seamless engine pairing
- Compatible with multiple drive systems
- Modular design for easy service
Safety Features
- Fail-Safes
-
- Transmission limp mode
- Overheat protection
- Fluid pressure monitoring
- Controls
-
- Anti-rollaway feature
- Park lock system
Comfort Features
- Shift Quality
-
- Smooth gear transitions
- Reduced shift shock
- Noise Reduction
-
- Quiet operation
- Vibration dampening
- Convenience
-
- One-touch manual mode
- Paddle shifters (optional)
Accessories
- Upgrades
-
- Performance shift kit
- Enhanced cooling system
- Custom tuning module
- Tools
-
- Transmission jack adapter
- Specialized scan tool
- Fluid exchange system
- Kits
-
- Rebuild kit
- Gasket and seal kit
- Fluid and filter kit
Maintenance
- Service interval
- Every 50,000 miles
- Service Items
-
- Fluid and filter change
- Pan inspection
- Seal and gasket check
- Shift calibration
- Diagnostic scan
- Maintenance Notes
- Use only Dexron VI transmission fluid.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission components
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Rigorous testing
- Quality Control
- inspection: 100% component testingStandards: ISO 9001 certified
- Sustainability Practices
-
- Recycled aluminum usage
- Energy-efficient production
- Waste reduction programs
- Production Metrics
- Units Per Year: 250,000Defect Rate: < 0.1%
Service Information for 6t70 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter replacement
- Pan inspection for debris
- Seal and gasket integrity check
- Shift calibration verification
- Diagnostic scan for error codes
Use only Dexron VI transmission fluid to maintain warranty.
- Comprehensive fluid flush
- Clutch pack inspection
- Valve body cleaning
- Torque converter check
- Transmission mount inspection
Specialized tools required for valve body access.
- Complete transmission overhaul
- Clutch pack replacement
- Solenoid testing and replacement
- Output shaft seal replacement
- Performance testing post-service
Major service may require transmission removal.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 6T70 transmission compatible with other GMC models?
Is the 6T70 transmission compatible with other GMC models?
The 6T70 transmission is specifically designed for the 2017-2019 GMC Acadia. While it may share similarities with other GM models, compatibility is not guaranteed. Always verify with your vehicle's specifications or consult a professional technician to ensure proper fitment and functionality.
Q2 What maintenance is required for the 6T70 transmission?
What maintenance is required for the 6T70 transmission?
Regular maintenance for the 6T70 transmission includes fluid and filter changes every 45,000 to 60,000 miles. Inspect for leaks, monitor fluid levels, and ensure proper cooling system function. Adhering to GMC’s recommended maintenance schedule helps prevent premature wear and ensures optimal performance.
Q3 How do I replace the 6T70 transmission in my GMC Acadia?
How do I replace the 6T70 transmission in my GMC Acadia?
Replacing the 6T70 transmission involves disconnecting the battery, draining the transmission fluid, removing the drive shafts, and detaching the transmission mounts. Carefully lower the transmission using a jack and install the new unit by reversing the steps. Professional assistance is recommended for accuracy and safety.
Q4 What should I do if my 6T70 transmission is slipping?
What should I do if my 6T70 transmission is slipping?
If your 6T70 transmission is slipping, check the fluid level and condition first. Low or contaminated fluid can cause issues. Inspect for leaks, worn components, or faulty sensors. If problems persist, consult a technician for a diagnostic scan and potential repairs.
Q5 How can I optimize the performance of my 6T70 transmission?
How can I optimize the performance of my 6T70 transmission?
To optimize performance, use the recommended transmission fluid, avoid aggressive driving, and keep up with regular maintenance. Installing an auxiliary cooler can help manage temperatures, especially in towing or heavy-load scenarios. Periodic software updates from GMC can also enhance shifting and efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2017-2019 GMC Acadia 6T70 Transmission Service Manual
Coming SoonDetailed guide covering installation, maintenance, and troubleshooting for the 6T70 transmission.
Technical Service Bulletin for 6T70 Transmission Updates
Coming SoonLatest updates and fixes for the 6T70 transmission, including software improvements and common issues.
6T70 Transmission Parts and Accessories Catalog
Coming SoonComprehensive list of replacement parts and accessories for the 6T70 transmission.
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Important information about using this content
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General Information
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The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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