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The 8l90 transmission is an advanced 8-speed automatic engineered for performance and fuel economy. Commonly found in GM vehicles, it ensures precise shifting, excellent load handling, and durability even under demanding conditions. Our replacement 8l90 transmission units are thoroughly inspected for gear performance, torque converter health, and internal wear to guarantee optimal function. With smooth gear transitions and dependable handling, the 8l90 transmission is ideal for both performance enthusiasts and everyday drivers seeking reliability.