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Appears it will have some dirver adjustments as far as firmness and shift points. However, GM stated in the past they will have a 8 speed auto, so, hopefully they will do like 2005 with a carry over transmission and have it a no cost option.
A word about the transmissions – the optional Hydramatic six-speed carries the same model number as before – 6L80 – but incorporates a host of new internals, including revised gears, a different torque converter and active fuel management software.