GM 6L80 Transmissions: How to Rebuild & Modify

Introduced in 2006, the 6L80 has become the most popularGeneral Motors transmission in production today. Millions areon roads around the world, and the 6L series of transmissionshas overtaken the 4L60E as the most popular rebuild in themajority of transmission shops and dealerships today. Automatic transmissions are often seen as mysterious andoverly complicated, but much of the guesswork has been simplifiedto its basic elements in this easy-to-follow guide. Thisbook covers the identification process, operation, diagnosticpointers, common failures, and repair and rebuild proceduresfor the 6L80 transmission. Upgrades that are available tomake the 6L80 more robust are covered as well as the companiesthat offer upgrades. This detailed, step-by-step instructional manual is authoredby engineer, instructor, speaker, and author Steve Garrett.Meticulous step-by-step photos of the rebuild process arefeatured along with torque specifications and identification ofall major and most minor components. • The GM 6L80 is the most prevalent transmission on theroad today and is a popular choice for high performanceswaps• Detailed, step-by-step images walk the reader throughdisassembly, rebuild, and reassembly• Many aftermarket companies offer components for upgradingthe GM 6L80