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    HELP! 2012 suburban 6L80 trans failure

    I need some gearhead advice. I have a 2012 Burb with the 6L80 that has 202k miles. I was towing my boat (20ft Ranger fiberglass) and lost 3,4,5,6 gears. What would be my best route going forward in y'alls opinion? Motor runs good. Are these trannys worth rebuilding? Should I use different...

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