I would have kept the original 4sp but it just kept having one fit issue after another. So I already had the 4L80e that the 14 bolt came from. only thing I had to get was a flywheel to replace the 4L65e one. It should cruise nice with 3.73 gears and overdrive with lockup converter.
1955 GMC 150, 1980 Chevy C10, 2011 Sierra 3500 HD SLT Duramax Dually Crewcab, 1960 Chevy BelAir 2dr sedan, 1978 Pontiac Trans-Am
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