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  1. Transmission - Rearend
    Have a 2002 yukon denali with the 6.0 and the 4L65E AWD, there were no gears so pulled and rebuilt and replaced torque convertor. Before pulling there were no transmission codes, after the rebuild and install there were 4 transmission codes P0740, P0785, P1810, P1860. I know what the codes mean...
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