The Jasper Engines & Transmissions GM 6L80E and 6L90E transmissions are remanufactured 6-speed transmissions available on exchange for the following 2010-2012 vehicles: Chevrolet Suburban, Avalanche, Tahoe, Silverado 1500-3500, Express 1500-4500; GMC Sierra 1500-3500, Yukon, Savana 1500-4500; and Cadillac Escalade. The 6L80E and 6L90E are subjected to strict, high-quality processes including disassembly, inspection and cleaning of components, dynamometer testing and more.These transmissions have a contained transmission control module (TCM) and are covered by Jasper's three-year/100,000 mile nationwide transferable parts and labor warranty.