AAA TEXAS 500: Carl Edwards applied the brakes to Joe Gibbs Racing’s post-season winless streak Sunday night at Texas Motor Speedway, getting a lightning-fast pit stop from his crew and a timely shower from “Mother Nature” to claim victory and secure a spot in the championship race later this month in Miami.  As an organization, J-G-R’s four drivers – Edwards, Kyle Busch, Denny Hamlin and Matt Kenseth – combined to win eleven of the twenty-six regular-season races but were oh-for-seven in this year’s Chase heading into Sunday’s race.  Rain delayed the start from afternoon to evening and then stopped the race forty-one laps short of its scheduled distance.  In between, Joey Logano and Martin Truex Junior combined to lead 244 laps.  But Edwards’ pit crew gave him four fresh tires and fuel in under twelve seconds on their final stop of the night less than forty laps from the finish.  The Number-19 Toyota was the first car off pit road and it stayed in front the rest of the way to give Edwards his twenty-eighth career victory and fourth on the Fort Worth oval.  Logano grabbed second place after leading a race-high 178 laps.  Truex was third with rookie Chase Elliott and Busch – the Number-1 seed in the Chase – completing the top five.  Pole sitter Austin Dillon led just six laps and was sidelined by an accident late in the race, finishing thirty-seventh in the forty-car field … With the victory, Edwards joins Jimmie Johnson as the first two drivers to clinch berths in The Championship Four.  The six other title contenders will be vying for two remaining spots next weekend at Phoenix International Raceway.