6T70 Transmission Price range: $600.00 through $1,200.00Select options
6T70 Transmission
The 6T70 transmission is a 6-speed automatic front-wheel-drive (FWD) transmission engineered for smooth shifting, efficiency, and dependable performance in midsize vehicles. It features electronically controlled shift logic, adaptive learning capability, and a compact transverse design optimized for modern drivetrains. Built with durable clutch systems and a high-efficiency torque converter, the 6T70 delivers balanced performance and fuel economy. Developed by General Motors, this transmission is widely used across GM sedans and crossovers, making it a reliable option for daily driving and long-term usability.
In Stock
$600.00 – $1,200.00Price range: $600.00 through $1,200.00
The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.
SKU: GM-6T70
Category: Used Transmission
Tags: 6-Speed Automatic Transmission, 6T70 replacement transmission, 6T70 transmission, Chevy Malibu transmission, front wheel drive transmission, GM 6T70 gearbox, GM automatic gearbox, GM FWD transmission, GMC Acadia transmission, used 6T70 transmission
Brand: General Motors
Additional Information
| Brand | General Motors |
|---|---|
| Conditions | Remanufactured, Used |
| Miles | 70000-130000 |
| Year Compatibility | 2007–2025 |
| Verified | Tried & Tested |
| Warranty | Up to 3 Months |
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Specifications
The GM 6T70 transmission is a 6-speed automatic, electronically controlled FWD/AWD transaxle designed for high-torque applications of up to 280 lb-ft (380 Nm), commonly paired with 3.6L V6 engines in vehicles like the GMC Acadia. It uses DEXRON VI fluid and features a 246 mm torque converter, weighing about 216 lbs. (104 kg), with a focus on smooth clutch-to-clutch shifting. The transmission supports gearbox torque up to 379 lb-ft in gears 2–6 and 331 lb-ft in 1st gear, with fluid capacity ranging from roughly 4–6 liters for a service change and up to 7–9 liters for a rebuild.
It offers gear ratios of 4.48:1 (1st), 2.87:1 (2nd), 1.84:1 (3rd), 1.41:1 (4th), 1.00:1 (5th), 0.74:1 (6th), and 2.88:1 in reverse, along with final drive options of 2.77, 3.16, or 3.39. Built with a three planetary gearset, 3-axis design, and adaptive shift controls, it includes an internally mounted transmission control module (TCM), which can be prone to heat-related issues; earlier models also experienced wave plate failures and torque converter clutch problems.
Engine Variants
6T70 (MH2/MH4/M7W/M7U)
This is the standard variant in GM’s 6-speed FWD/AWD transaxle family, widely used in midsize and large vehicles such as the Chevrolet Traverse, Buick Enclave, and Cadillac SRX. It is designed for moderate to high torque applications, especially V6 engines, offering a balance of smooth shifting, efficiency, and durability for everyday driving.
6T75 (M7X/M7V)
This is a strengthened, higher-capacity evolution of the 6T70, built to handle greater torque loads and more demanding conditions such as towing. It features internal upgrades like a shot-peened output carrier for added strength and a wider transfer gear, making it suitable for heavier vehicles and more performance-oriented applications.
6F50/6F55
This variant is closely related counterparts to the 6T70 and 6T75. The 6F50 aligns with the 6T70 in terms of torque capacity and application, while the 6F55 matches the more robust 6T75, both being used in Ford and Lincoln vehicles with similar design architecture but brand-specific calibrations.
6T40/6T45/6T50
These are smaller members of the same transmission family, engineered primarily for 4-cylinder engine applications. These variants are lighter-duty compared to the 6T70/75, focusing on fuel efficiency and compact packaging while still incorporating similar electronic controls and clutch-to-clutch shifting technology.
Frequently Asked Questions
What vehicles commonly use the 6T70 transmission?
The 6T70 transmission is used in vehicles like the Chevrolet Malibu, GMC Acadia, Buick LaCrosse, and Saturn Outlook.
Is the 6T70 transmission reliable?
Yes, it is generally reliable when properly maintained with regular fluid changes and proper cooling.
What are common problems with the 6T70 transmission?
Typical issues include wave plate failure, slipping gears, and delayed shifting, especially in high-mileage units.
What type of fluid does the 6T70 use?
It typically requires DEXRON VI automatic transmission fluid.
Can the 6T70 handle heavy driving conditions?
It is designed for daily driving and moderate loads but is not intended for heavy-duty towing applications.
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