"There was no truck out there that was going to beat us, unless we beat ourselves," said Gaughan said. "And I did. I spun my tyres on it, I gave an opening, and that's what you can't do."
Polesitter Justin Lofton had also been in contention, but on lap 145 he slammed into the outside wall at turn 4 with just six laps remaining to bring out the final caution of the night and set up a final two-lap shootout between Peters and the now fully recovered Buescher.
Peters led the first lap after the restart, but it was Buescher who then edged in front on the final lap to claim the chequered flag. Peters put his championship hopes ahead of race glory and backed off, allowing Gaughan to recover from a poor getaway at the previous restart caused by excess wheel spin and claim second spot.
As a result of playing the long game, Peters - who had himself needed to overcome being sent to the back of the starting grid for a pre-race engine change in order to put himself third position by the finish - retains the series lead and is now 23pts ahead of Ty Dillon, with Lofton, Buescher and Kligerman all still firmly in contention for the 2012 title.
Full race results, qualifying and practice times
and NASCAR Camping World Truck Series standings