Specifically, the full-size vans get a new torque converter and centrifugal pendulum-type absorber for their eight-speed automatic transmissions only when mated to the optional 2.8L turbo-diesel Duramax engine.
This latest update applies to the MQD eight-speed transmission. The new hardware should offer benefits such as smoother operation and less overall vibration, along more robustness.
To note, the MQD eight-speed automatic transmission mates to the 2.8L LWN turbo-diesel engine. Output is rated at 181 horsepower at 3,400 rpm and 369 pound-feet of torque at 2,000 rpm.
Heading into then new model year, both 2020 GM vans will continue to be offered in a trio of body styles, including Cargo, Passenger, and Cutaway. Each is uniquely outfitted to accommodate specific applications and use cases with regard to available seating, cargo room, or the cab/chassis configuration.
Meanwhile, the powertrain lineup for the 2020 GM vans remains identical to that of the outgoing model year, and is as follows:
|Engine||Transmission||Power hp / kW @ RPM||Torque lb-ft / Nm @ RPM|
|GM 4.3L V6 EcoTec3 LV1||Eight-speed automatic M5U||265 / 198 @ 5200||295 / 400 @ 4000|
|GM 6.0L V8 Vortec L96||Six-speed MYD-6L90||342 / 255 @ 5400||373 / 506 @ 4400|
|GM 6.0L V8 Vortec CNG LC8||Six-speed MYD-6L90||282 / 210 @ 4800||320 / 434 @ 4400|
|GM 6.0L V8 Vortec LPG LC8||Six-speed MYD-6L90||332 / 248 @ 4800||370 / 501 @ 4400|
|GM 2.8 Liter LWN I-4 Duramax Turbo Diesel||Eight-speed MQD||181 / 135 @ 3400||369 / 500 @ 2000|
Note that the two 2020 GM vans, including the 2020 Chevrolet Express and the 2020 GMC Savana, offer all powertrain combinations across the board, with one particular exception: the turbodiesel 2.8L Duramax LWN inline four-cylinder engine is only offered with the Cargo and Passenger van body styles, and is not available with the Cutaway body style.