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A 4-speed overdrive automatic was an option on all engines (for 1500- and 2500-series vehicles); a 3-speed automatic was also offered (and was the sole automatic for 3500-series trucks). [ 8 ] For 1991, the THM400 gained a 4th gear and electronic controls, becoming the 4L80-E ; designed for applications over 8,600 lb GVWR, the transmission was ...
This happened in 1993 for trucks, vans, and SUVs, and 1994 for rear wheel drive passenger cars. In 1996, a bolt-on bell housing was phased in (along with a six-bolt tailhousing) for S-10 Trucks and S-10 Blazers and beginning in 1998 for all other applications. Beginning in 1998 a new 300mm torque converter with improved higher-capacity ...
1991–2007 Chevrolet/GMC Suburban/GMC Yukon XL 1500 and 2500; 1991–2009 Chevrolet Van/Chevrolet Express/GMC Savana 2500 and 3500; 1995–1999 Chevrolet Tahoe/GMC Yukon 6.5L Diesel; 2002–2006 Chevrolet Avalanche 2500; 1992–2006 Hummer H1; 1992–1998 Rolls-Royce Silver Spirit/Spur II, III, IV; 1991–1992 Bentley Eight; 1991–1997 ...
An electronic control unit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle.
GMC (formerly the General Motors Truck Company (1911–1943), or the GMC Truck & Coach Division (1943–1998)) is a division of American automotive manufacturer General Motors (GM) for trucks and utility vehicles. GMC currently makes SUVs, pickup trucks, vans, and light-duty trucks.
The complex included GMC Truck & Coach Plant 1, 3, 4 and 5, as well as numerous administrative and support buildings. The last GM operations at the facility were closed, and the site completely demolished, in 2008. [2]
Delco Electronics Corporation was the automotive electronics design and manufacturing subsidiary of General Motors based in Kokomo, Indiana, that manufactured Delco Automobile radios and other electric products found in GM cars.
Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb⋅ft (840 N⋅m) of torque. This rating has increased as the transmission was updated several times, to stand at 765 lb⋅ft (1,037 N⋅m) by 2011 in GM truck applications.