The General Motors 6L50 (MYB) 6-speed automatic transmission has been produced in the US since 2006 and is installed in the popular Chevrolet Trailblazer SUVs and Colorado and Canyon pickup trucks. The Punch Powerglide 6L50 automatic transmission is based on this transmission.
Specifications
| Type | automatic transmission |
| Number of gears | 6 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 4.6 |
| Torque output, Nm | up to 450 |
| Recommended oil | Dexron VI |
| Oil capacity, liter | 9.7 |
| Partial replacement, liter | 6.0 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 89 |
Gear ratios GM 6L50
Using the 2014 Chevrolet Trailblazer with a 3.6-liter engine as an example:
| Main | 3.42 |
| 1st | 4.065 |
| 2nd | 2.371 |
| 3rd | 1.551 |
| 4th | 1.157 |
| 5th | 0.853 |
| 6th | 0.674 |
| Reverse | 3.200 |
Using
The transmission was installed on:
- Cadillac CTS II (GMX322) in 2007 – 2015;
- Cadillac SRX I (GMT265) in 2006 – 2010;
- Cadillac STS I (GMX295) in 2007 – 2011;
- Cadillac XLR I (GMX215) in 2006 – 2009;
- Chevrolet Camaro 5 (GMX521) in 2009 – 2015;
- Chevrolet Colorado 2 (GMT31XX) in 2011 – …;
- Chevrolet Trailblazer 2 (GMT31XX) in 2011 – …;
- GMC Canyon 2 (GMT31XX) in 2014 – 2022.
Disadvantages of the GM 6L50 gearbox
- The weak point of all transmissions in this series is the torque converter and its hub;
- In active owners, the torque converter clutch wears out quickly and clogs the mechatronics;
- Then, due to a drop in pressure, the clutches burn out and even their drums burst;
- Driving at high speeds significantly reduces the service life of the petal-type oil pump;
- The control unit is sensitive to high temperatures and often fails when the transmission overheats.
Frequently asked questions about the GM 6L50
What type of transmission is the GM 6L50?
The GM 6L50 is a 6-speed automatic transmission for rear-wheel and all-wheel drive cars.
How much torque can the GM 6L50 handle?
The GM 6L50 is designed for torque up to 450 Nm and engines up to 4.6 liters.
How much oil does the GM 6L50 take and which one?
The GM 6L50 takes 9.7 liters of oil (6.0 liters for a partial change). Recommended oil: Dexron VI.
How often should the GM 6L50 be serviced?
Recommended service interval: every 60 000 km.
How long does the GM 6L50 last?
With proper maintenance, the GM 6L50 typically lasts about 250 000 km.
How much does the GM 6L50 weigh?
The GM 6L50 weighs about 89 kg.
What are the gear ratios of the GM 6L50?
Using the 2014 Chevrolet Trailblazer with a 3.6-liter engine as an example: final drive 3.42, 1st 4.065, 2nd 2.371, 3rd 1.551, 4th 1.157, 5th 0.853, 6th 0.674, reverse 3.200.
What cars was the GM 6L50 installed on?
Cadillac CTS II (GMX322) in 2007 - 2015; Cadillac SRX I (GMT265) in 2006 - 2010; Cadillac STS I (GMX295) in 2007 - 2011; Cadillac XLR I (GMX215) in 2006 - 2009; Chevrolet Camaro 5 (GMX521) in 2009 - 2015; Chevrolet Colorado 2 (GMT31XX) in 2011 - and 2 more (see the full list above).
What are the common problems of the GM 6L50?
The weak point of all transmissions in this series is the torque converter and its hub. In active owners, the torque converter clutch wears out quickly and clogs the mechatronics. All known problems.
