Question: Between what years was the transmission built by General Motors used in the full-size, extended length, sport utility vehicle from Chevrolet?
Context: Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM).  Louis Chevrolet and ousted General Motors founder William C. Durant started the company on November 3, 1911 as the Chevrolet Motor Car Company.  Durant used the Chevrolet Motor Car Company to acquire a controlling stake in General Motors with a reverse merger occurring on May 2, 1918 and propelled himself back to the GM presidency.  After Durant's second ousting in 1919, Alfred Sloan, with his maxim "a car for every purse and purpose," would pick the Chevrolet brand to become the volume leader in the General Motors family, selling mainstream vehicles to compete with Henry Ford's Model T in 1919 and overtaking Ford as the best-selling car in the United States by 1929. The Chevrolet TrailBlazer is a mid-size sport utility vehicle that has been produced by General Motors since 2002. The Isuzu Panther is a line of multi-purpose vehicle, sport utility vehicle and pickup truck manufactured since 1991 by Isuzu developed in Indonesia for the Southeast Asian market.  It is also manufactured and marketed in India under the name Chevrolet Tavera, a name which is also used in Indonesia for the gasoline version until 2007.  It was developed together with General Motors as the "160 Project". The Chevrolet Suburban is a full-size, extended-length sport utility vehicle from Chevrolet.  It is the longest continuous use automobile nameplate in production, starting in 1935 for the 1935 U.S. model year, and has traditionally been one of General Motors' most profitable vehicles.  The Suburban has been produced under the Chevrolet, Holden, Plymouth and GMC marques until the GMC version was rebranded as the GMC Yukon XL.  For most of its recent history, the Suburban has been a station wagon-bodied version of the Chevrolet pickup truck, including the Chevrolet C/K and Silverado series of truck-based vehicles.  Cadillac offers a version called the Escalade ESV. The Hummer H3 is a sport utility vehicle/off-road vehicle from Hummer that was produced from 2005 to 2010.  Introduced for the 2006 model year, it was based on a highly modified GMT355 underpinning the Chevrolet Colorado/GMC Canyon compact pickup trucks that were also built at GM's Shreveport Operations in Shreveport, Louisiana and the Port Elizabeth plant in South Africa.  The H3 was the smallest among the Hummer models, and the only one to be built by General Motors.  It was available either as a traditional midsize SUV or as a midsize pickup known as the H3T. The Ford Explorer is a full-size sport utility vehicle produced by the American manufacturer Ford Motor Company since 1990, based since 2010 on a crossover platform.  The Ford Explorer became one of the most popular sport utility vehicles on the road.  The model years 1991 through 2010 were traditional body-on-frame, mid-size SUVs. For the 2011 model year, Ford moved the Explorer to a more modern unibody, full-size crossover SUV platform, the same Volvo-derived platform the Ford Flex and Ford Taurus use although with significantly greater ground clearance.  It is slotted between the traditional body-on-frame, full-size Ford Expedition and the mid-size CUV (Crossover Utility Vehicle) Ford Edge.  Although outwardly similar, the fifth generation Explorer, Ford Edge and Ford Escape do not share platforms.  The fifth generation Explorer does, however, share platforms with the Ford Flex and Lincoln MKT. The Chevrolet Sequel was a purpose-built hydrogen fuel cell-powered concept car and sport utility vehicle from Chevrolet, employing the then latest generation of General Motors' fuel cell technology. GMC (General Motors Truck Company), formally the GMC Division of General Motors LLC, is a division of the American automobile manufacturer General Motors (GM) that primarily focuses on trucks and utility vehicles.  GMC sells pickup and commercial trucks, buses, vans, military vehicles, and sport utility vehicles marketed worldwide by General Motors. The Jeep Cherokee (XJ) is a sport utility vehicle that was manufactured and marketed by Jeep from 1983 to 2001.  Sharing the name of the original full-size SJ model, but without a traditional body-on-frame chassis, the XJ instead featured a light-weight unibody design, The models were originally marketed as Sportwagons and became the precursor to the modern sport utility vehicle (SUV) as that term was not yet in use. The Muncie SM465 is a heavy-duty, four-speed manual transmission built by General Motors for use in light and medium duty trucks from 1968 to 1991.  The SM465 can be found in Chevrolet and GMC full-size trucks, Blazers, Suburbans, among other models.  Some applications beyond one-ton pickup trucks came with larger input shafts.  Favored by off-road drivers, the SM465 has a very low first gear suitable for rock-crawling.  The SM465 has developed a reputation as a highly durable transmission.  For the 1992 model-year, the SM465 was replaced in 3/4- and 1-ton pickup truck applications by the New Venture Gear 4500 transmission.
Answer: 1968 to 1991