Brendan Gaughan in Victory Lane View the High Sierra Gallery for this race

Expertly piloting his No. 62 NAPA/Orleans Dodge Ram, Brendan Gaughan scored his first ever NASCAR Craftsman Truck Series victory before a huge crowd at the O'Reilly 400 at Texas Motor Speedway.   Seated in 10th on the starting grid, Gaughan took over the lead on lap 109 and never really looked back. "This is the greatest thing I've ever won," said an obviously elated Gaughan. "I love this track. We took second here last year and we came in wanting to better it and that's what we did. The Orleans crew gave me an incredible NAPA Dodge. I just drive; they do all the work. To make it even better, we had a lot of NAPA people here and it was a pleasure to bring home my first truck win in front of them."  Running the 167 lap O'Reilly 400 in 1:56:02, Gaughan's margin of victory was 2.364 seconds.  Kvapil, who won at Texas last fall, drove his Chevrolet to second place, 2.36 seconds behind the winner. Gaughan, in his 24th career start, is the ninth winner in as many truck races at the 11/2-mile, high-banked quadoval. "I was really confident when I got into second place that I would be able to run him down," Kvapil said. "I was pretty surprised the way it played out. I really thought in the long run our four tires would pay off. Brendan ran smooth, consistent laps and he definitely earned it."  The final caution came after pole-sitter Jason Leffler spun around and backed into the wall around the first turn on lap 107 of 167. Leffler finished 26th. Series points leader David Starr, who qualified second but had to start at the back of the 35-truck field after an engine change, drove back through the field to finish third. That matched his career-best from last June at Texas, where his family runs a racing school. Starr, who hasn't won in 54 career starts, is the only driver to finish in the top 10 of all seven races this year.  By the end of the 25th lap, Starr had already gotten into the top 10, and he stayed there the rest of the race.  Crawford and Ted Musgrave completed the top five. Crawford is second in season points, 17 behind Starr and just three ahead of Musgrave.  There were eight leaders in the race. Musgrave led the first 10 laps and Crawford was in front for 21 laps.