FORT WORTH, TEXAS – Kyle Busch took the lead after the final restart Saturday night at Texas to complete his second NASCAR weekend sweep in a row.

Busch ended Jimmie Johnson's three-race winning streak at Texas, getting his 36th Sprint Cup victory a week after also winning at Martinsville.

Busch also won the Xfinity race at Texas on Friday night, his 80th win in that series that was coming off a two-week break. At Martinsville, he also got his 45th Camping World Truck Series victory. That's four NASCAR Series wins in a span of eight days.

On the first lap after the final restart, lap 302 of 334, Busch went on the outside of Turn 4 to shoot around Martin Truex Jr. for the lead. Busch led the rest of the way, winning by nearly 4 seconds over Dale Earnhardt Jr.

Rain delayed the start of the race 1 hour, 50 minutes.

Stewart update

Tony Stewart is anxiously waiting to find out when he will be able to return from a broken back to debut in what is supposed to be his last season as a full-time NASCAR Sprint Cup driver. He still has a few more weeks before getting that answer.

Saturday night began with a nearly two-hour rain delay in Fort Worth and ended with a Kyle Busch Sprint Cup victory.

Stewart had X-rays last month to make sure rods and screws surgically implanted after his offseason buggy accident were still in place and not moving. He will have more scans at the end of this month.

"Then (doctors) will be able to have an idea of when exactly it's going to happen," Stewart said. "The hard part is just waiting."

Until then, Stewart will continue in his role as co-owner of Stewart-Haas Racing while Brian Vickers and Ty Dillon share the role as the replacement driver in Stewart's No. 14 Chevrolet.

"It's kind of been a window of what next year's going to be like in all reality," Stewart said Thursday night. "Even though it's been negative to be out of the car, I think it's been positive to know that we've got a lot to look forward to next year."

Stewart said he feels great, doing everything in the last week that he wanted to do. He said his rehabilitation is going well, and that doctors were even OK after he pushed things on his own.

Vickers drove the No. 14 on Saturday night.